ci: Host our own URL to test expected TLS_VERIFY failure

Avoid unnecessary load on an external resource.
diff --git a/.gitlab/ci/configure_debian12_aarch64_ninja.cmake b/.gitlab/ci/configure_debian12_aarch64_ninja.cmake
index 3628028..0ebf604 100644
--- a/.gitlab/ci/configure_debian12_aarch64_ninja.cmake
+++ b/.gitlab/ci/configure_debian12_aarch64_ninja.cmake
@@ -98,7 +98,7 @@
 set(CMake_TEST_JQ "/usr/bin/jq" CACHE PATH "")
 set(CMake_TEST_Qt5 "ON" CACHE BOOL "")
 set(CMake_TEST_TLS_VERIFY_URL "https://gitlab.kitware.com" CACHE STRING "")
-set(CMake_TEST_TLS_VERIFY_URL_BAD "https://expired.badssl.com" CACHE STRING "")
+set(CMake_TEST_TLS_VERIFY_URL_BAD "https://badtls-expired.kitware.com" CACHE STRING "")
 set(CMake_TEST_TLS_VERSION "1.3" CACHE STRING "")
 set(CMake_TEST_UseSWIG "ON" CACHE BOOL "")
 
diff --git a/.gitlab/ci/configure_debian12_ninja_common.cmake b/.gitlab/ci/configure_debian12_ninja_common.cmake
index 10317ab..0e2ecce 100644
--- a/.gitlab/ci/configure_debian12_ninja_common.cmake
+++ b/.gitlab/ci/configure_debian12_ninja_common.cmake
@@ -106,7 +106,7 @@
 set(CMake_TEST_JQ "/usr/bin/jq" CACHE PATH "")
 set(CMake_TEST_Qt5 "ON" CACHE BOOL "")
 set(CMake_TEST_TLS_VERIFY_URL "https://gitlab.kitware.com" CACHE STRING "")
-set(CMake_TEST_TLS_VERIFY_URL_BAD "https://expired.badssl.com" CACHE STRING "")
+set(CMake_TEST_TLS_VERIFY_URL_BAD "https://badtls-expired.kitware.com" CACHE STRING "")
 set(CMake_TEST_TLS_VERSION "1.3" CACHE STRING "")
 
 if (NOT "$ENV{SWIFTC}" STREQUAL "")
diff --git a/.gitlab/ci/configure_fedora40_makefiles.cmake b/.gitlab/ci/configure_fedora40_makefiles.cmake
index a28761c..21a5be5 100644
--- a/.gitlab/ci/configure_fedora40_makefiles.cmake
+++ b/.gitlab/ci/configure_fedora40_makefiles.cmake
@@ -109,7 +109,7 @@
 endif()
 set(CMake_TEST_Qt5 "ON" CACHE BOOL "")
 set(CMake_TEST_TLS_VERIFY_URL "https://gitlab.kitware.com" CACHE STRING "")
-set(CMake_TEST_TLS_VERIFY_URL_BAD "https://expired.badssl.com" CACHE STRING "")
+set(CMake_TEST_TLS_VERIFY_URL_BAD "https://badtls-expired.kitware.com" CACHE STRING "")
 set(CMake_TEST_TLS_VERSION "1.3" CACHE STRING "")
 set(CMake_TEST_UseSWIG "ON" CACHE BOOL "")
 
diff --git a/.gitlab/ci/configure_fedora40_ninja.cmake b/.gitlab/ci/configure_fedora40_ninja.cmake
index 07b7c73..ae968a3 100644
--- a/.gitlab/ci/configure_fedora40_ninja.cmake
+++ b/.gitlab/ci/configure_fedora40_ninja.cmake
@@ -4,7 +4,7 @@
 endif()
 set(CMake_TEST_MODULE_COMPILATION "named,compile_commands,collation,partitions,internal_partitions,export_bmi,install_bmi,shared,bmionly" CACHE STRING "")
 set(CMake_TEST_TLS_VERIFY_URL "https://gitlab.kitware.com" CACHE STRING "")
-set(CMake_TEST_TLS_VERIFY_URL_BAD "https://expired.badssl.com" CACHE STRING "")
+set(CMake_TEST_TLS_VERIFY_URL_BAD "https://badtls-expired.kitware.com" CACHE STRING "")
 set(CMake_TEST_TLS_VERSION "1.3" CACHE STRING "")
 
 # "Release" flags without "-DNDEBUG" so we get assertions.
diff --git a/.gitlab/ci/configure_macos_arm64_ninja.cmake b/.gitlab/ci/configure_macos_arm64_ninja.cmake
index 8b1eacb..9611f0b 100644
--- a/.gitlab/ci/configure_macos_arm64_ninja.cmake
+++ b/.gitlab/ci/configure_macos_arm64_ninja.cmake
@@ -7,7 +7,7 @@
 set(CMake_TEST_FindOpenMP_CXX "ON" CACHE BOOL "")
 set(CMake_TEST_GUI "ON" CACHE BOOL "")
 set(CMake_TEST_TLS_VERIFY_URL "https://gitlab.kitware.com" CACHE STRING "")
-set(CMake_TEST_TLS_VERIFY_URL_BAD "https://expired.badssl.com" CACHE STRING "")
+set(CMake_TEST_TLS_VERIFY_URL_BAD "https://badtls-expired.kitware.com" CACHE STRING "")
 set(CMake_TEST_TLS_VERSION "1.3" CACHE STRING "")
 
 include("${CMAKE_CURRENT_LIST_DIR}/configure_macos_common.cmake")
diff --git a/.gitlab/ci/configure_macos_x86_64_makefiles.cmake b/.gitlab/ci/configure_macos_x86_64_makefiles.cmake
index 50529f7..ed25f68 100644
--- a/.gitlab/ci/configure_macos_x86_64_makefiles.cmake
+++ b/.gitlab/ci/configure_macos_x86_64_makefiles.cmake
@@ -7,7 +7,7 @@
   set(CMake_TEST_ISPC "ON" CACHE STRING "")
 endif()
 set(CMake_TEST_TLS_VERIFY_URL "https://gitlab.kitware.com" CACHE STRING "")
-set(CMake_TEST_TLS_VERIFY_URL_BAD "https://expired.badssl.com" CACHE STRING "")
+set(CMake_TEST_TLS_VERIFY_URL_BAD "https://badtls-expired.kitware.com" CACHE STRING "")
 set(CMake_TEST_TLS_VERSION "1.3" CACHE STRING "")
 
 include("${CMAKE_CURRENT_LIST_DIR}/configure_macos_common.cmake")
diff --git a/.gitlab/ci/configure_macos_x86_64_ninja.cmake b/.gitlab/ci/configure_macos_x86_64_ninja.cmake
index c7e2945..0feafa2 100644
--- a/.gitlab/ci/configure_macos_x86_64_ninja.cmake
+++ b/.gitlab/ci/configure_macos_x86_64_ninja.cmake
@@ -10,7 +10,7 @@
   set(CMake_TEST_ISPC "ON" CACHE STRING "")
 endif()
 set(CMake_TEST_TLS_VERIFY_URL "https://gitlab.kitware.com" CACHE STRING "")
-set(CMake_TEST_TLS_VERIFY_URL_BAD "https://expired.badssl.com" CACHE STRING "")
+set(CMake_TEST_TLS_VERIFY_URL_BAD "https://badtls-expired.kitware.com" CACHE STRING "")
 set(CMake_TEST_TLS_VERSION "1.3" CACHE STRING "")
 
 include("${CMAKE_CURRENT_LIST_DIR}/configure_macos_common.cmake")
diff --git a/.gitlab/ci/configure_windows_arm64_vs2022_ninja.cmake b/.gitlab/ci/configure_windows_arm64_vs2022_ninja.cmake
index ea0abda..64a8913 100644
--- a/.gitlab/ci/configure_windows_arm64_vs2022_ninja.cmake
+++ b/.gitlab/ci/configure_windows_arm64_vs2022_ninja.cmake
@@ -4,7 +4,7 @@
 set(CMAKE_PREFIX_PATH "" CACHE STRING "")
 
 set(CMake_TEST_TLS_VERIFY_URL "https://gitlab.kitware.com" CACHE STRING "")
-set(CMake_TEST_TLS_VERIFY_URL_BAD "https://expired.badssl.com" CACHE STRING "")
+set(CMake_TEST_TLS_VERIFY_URL_BAD "https://badtls-expired.kitware.com" CACHE STRING "")
 set(CMake_TEST_TLS_VERSION "1.2" CACHE STRING "")
 
 include("${CMAKE_CURRENT_LIST_DIR}/configure_windows_msvc_cxx_modules_common.cmake")
diff --git a/.gitlab/ci/configure_windows_vs2022_x64_ninja.cmake b/.gitlab/ci/configure_windows_vs2022_x64_ninja.cmake
index 09de430..8b92bb2 100644
--- a/.gitlab/ci/configure_windows_vs2022_x64_ninja.cmake
+++ b/.gitlab/ci/configure_windows_vs2022_x64_ninja.cmake
@@ -8,7 +8,7 @@
 endif()
 
 set(CMake_TEST_TLS_VERIFY_URL "https://gitlab.kitware.com" CACHE STRING "")
-set(CMake_TEST_TLS_VERIFY_URL_BAD "https://expired.badssl.com" CACHE STRING "")
+set(CMake_TEST_TLS_VERIFY_URL_BAD "https://badtls-expired.kitware.com" CACHE STRING "")
 set(CMake_TEST_TLS_VERSION "1.2" CACHE STRING "")
 
 include("${CMAKE_CURRENT_LIST_DIR}/configure_windows_msvc_cxx_modules_common.cmake")