Merge pull request #1158 from KhronosGroup/clang-format-update

[CI] Update clang-format version to 18.

Author: bader

.github/workflows/cts_ci.yml

@@ -86,7 +86,7 @@ jobs:
 
   check-clang-format:
     if: github.event_name == 'pull_request'
-    runs-on: "ubuntu-22.04"
+    runs-on: "ubuntu-24.04"
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -95,7 +95,7 @@ jobs:
       - name: Run clang-format on changed files
         run: |
           set -o errexit -o pipefail -o noclobber -o nounset
-          DIFF=$( git diff -U0 --no-color ${{ github.event.pull_request.base.sha }} | clang-format-diff-14 -p1 )
+          DIFF=$( git diff -U0 --no-color ${{ github.event.pull_request.base.sha }} | clang-format-diff-18 -p1 )
           if [ ! -z "$DIFF" ]; then
             echo 'The following changes are not formatted according to `clang-format`:' >> $GITHUB_STEP_SUMMARY
             echo '```diff' >> $GITHUB_STEP_SUMMARY