Bug 1834707 - Update builders to clang 16.0.4. r=firefox-build-system-reviewers,sergesanspaille

Differential Revision: https://phabricator.services.mozilla.com/D178907

taskcluster/ci/fetch/toolchains.yml

@@ -360,11 +360,11 @@ clang-14:
         revision: 4bc1d0b51c8e488d78ab69c8b19cfbcd1f7db6a4
 
 clang-16:
-    description: clang 16.0.2 source code
+    description: clang 16.0.4 source code
     fetch:
         type: git
         repo: https://github.com/llvm/llvm-project
-        revision: 18ddebe1a1a9bde349441631365f0472e9693520
+        revision: ae42196bc493ffe877a7e3dff8be32035dea4d07
 
 clang-trunk:
     description: clang main branch source code

tools/clang-tidy/config.yaml

@@ -19,7 +19,7 @@ platforms:
 # Minimum clang-tidy version that is required for all the following checkers
 # to work properly.
 # This is also used by 'mach clang-format'
-package_version: "16.0.2"
+package_version: "16.0.4"
 clang_checkers:
   - name: -*
     publish: !!bool no