ci: don't test BundleGeneratorTest

This test uses shared global resources and doesn't work well with the CI
infrastructure we have. It is tested by nightly builders however.
diff --git a/.gitlab/ci/ctest_exclusions.cmake b/.gitlab/ci/ctest_exclusions.cmake
index eb9b724..b885a6a 100644
--- a/.gitlab/ci/ctest_exclusions.cmake
+++ b/.gitlab/ci/ctest_exclusions.cmake
@@ -1,4 +1,7 @@
 set(test_exclusions
+  # This test hits global resources and can be handled by nightly testing.
+  # https://gitlab.kitware.com/cmake/cmake/-/merge_requests/4769
+  "^BundleGeneratorTest$"
 )
 
 if (CTEST_CMAKE_GENERATOR MATCHES "Visual Studio")