Fix linting issues

.github/CODEOWNERS

@@ -3,4 +3,3 @@
 # Note: Anybody from org can help with review. In the end, at least one codeowner approval is required.
 
 *  @neatudarius @RaduNichita @mguludag @JeffGarland @inbal2l @ednolan @camio
-

.github/workflows/pre-commit.yml

@@ -10,4 +10,26 @@ on: [push]
 
 jobs:
   pre-commit:
-    uses: bemanproject/infra-workflows/.github/workflows/reusable-beman-pre-commit.yml@1.1.0
+    name: Pre-Commit check on Push
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+
+      # Required for local pre-commit hooks (markdownlint-cli, eslint, prettier)
+      - name: Set up Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: "npm"
+
+      - name: Install npm dependencies
+        run: npm ci
+
+      - uses: pre-commit/action@v3.0.1

.pre-commit-config.yaml

@@ -22,15 +22,14 @@ repos:
     hooks:
       - id: prettier
 
-  - repo: https://github.com/markdownlint/markdownlint
-    rev: v0.12.0 # Use the latest stable version
+  # Node-based markdownlint (avoids Ruby 3.1+ requirement of the mdl gem)
+  - repo: local
     hooks:
       - id: markdownlint
-
-  - repo: https://github.com/zricethezav/gitleaks
-    rev: v8.17.0 # Use the latest stable version
-    hooks:
-      - id: gitleaks
+        name: markdownlint
+        entry: markdownlint-cli
+        language: node
+        types: [markdown]
 
 exclude: |
   ^static/.*