STYLE: Update clang-format linter to @main with checkout@v5

Author: hjmjohnson

.github/workflows/clang-format-linter.yml

@@ -7,6 +7,8 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
-    - uses: InsightSoftwareConsortium/ITKClangFormatLinterAction@master
+    - uses: InsightSoftwareConsortium/ITKClangFormatLinterAction@main
+      with:
+        itk-branch: main