PIPELINE: Fix forgotten explicity clang-format version

.gitlab-ci.yml

@@ -78,7 +78,7 @@ code_style:
   tags: [ docker ]
   stage: test
   script:
-    - clang-format --dry-run --verbose --Werror $(find test/ src/ include/ -type f -iname "*.cpp" -o -iname "*.h" -o -iname "*.h.in")
+    - clang-format-16 --dry-run --verbose --Werror $(find test/ src/ include/ -type f -iname "*.cpp" -o -iname "*.h" -o -iname "*.h.in")
   allow_failure: true