[webpki] Make available for direct use

Already approved in OSRB-123

CF-222 #comment

Change-Id: I61f87ee06f0d3bdf2aa6f7a03760ddae2ba09e28
diff --git a/rustc_deps/Cargo.lock b/rustc_deps/Cargo.lock
index 0d82a3a..0e98a75 100644
--- a/rustc_deps/Cargo.lock
+++ b/rustc_deps/Cargo.lock
@@ -565,6 +565,7 @@
  "valico 2.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "vte 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "webpki 0.19.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "xi-core-lib 0.2.0",
  "xi-rpc 0.2.0",
  "xml-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/rustc_deps/Cargo.toml b/rustc_deps/Cargo.toml
index 38b12ff..7ef8f63 100644
--- a/rustc_deps/Cargo.toml
+++ b/rustc_deps/Cargo.toml
@@ -81,6 +81,7 @@
 valico = "2.4.2"
 void = "1.0.2"
 vte = "0.3"
+webpki = "0.19.1"
 xi-core-lib = { version = "0.2.0", default-features = false } # disable "notify" crate
 xi-rpc = "0.2.0"
 xml-rs = "0.8"