pre-commit add chmod 644 manual hook for Markdown (#11651)

Author: jbampton

.github/workflows/linter.yml

@@ -45,3 +45,5 @@ jobs:
           key: pre-commit|${{ env.PY }}|${{ hashFiles('.pre-commit-config.yaml') }}
       - name: Run pre-commit
         run: pre-commit run --all-files
+      - name: Run manual pre-commit hooks
+        run: pre-commit run --all-files --hook-stage manual

.pre-commit-config.yaml

@@ -117,6 +117,14 @@ repos:
         args: [--config=.github/linters/.markdown-lint.yml]
         types: [markdown]
         files: \.(md|mdown|markdown)$
+  - repo: https://github.com/Lucas-C/pre-commit-hooks
+    rev: v1.5.5
+    hooks:
+      - id: chmod
+        name: set file permissions
+        args: ['644']
+        files: \.md$
+        stages: [manual]
   - repo: https://github.com/adrienverge/yamllint
     rev: v1.37.1
     hooks: