Bug 1942955 - Upgrade clang 19 toolchain to 19.1.7. r=firefox-build-system-reviewers,sergesanspaille

Differential Revision: https://phabricator.services.mozilla.com/D235091

taskcluster/kinds/fetch/toolchains.yml

@@ -355,11 +355,11 @@ clang-14:
         revision: 4bc1d0b51c8e488d78ab69c8b19cfbcd1f7db6a4
 
 clang-19:
-    description: clang 19.1.6 source code
+    description: clang 19.1.7 source code
     fetch:
         type: git
         repo: https://github.com/llvm/llvm-project
-        revision: e21dc4bd5474d04b8e62d7331362edcc5648d7e5
+        revision: cd708029e0b2869e80abe31ddb175f7c35361f90
 
 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: "19.1.6"
+package_version: "19.1.7"
 clang_checkers:
   - name: -*
     publish: !!bool no