Use fixed ports in ci, necessary for woodpecker-ci

.github/workflows/lint.yaml

@@ -0,0 +1,23 @@
+name: Lint
+
+on: push
+
+jobs:
+
+  renovate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@main
+      - uses: docker://kokuwaio/renovate-config-validator
+
+  markdownlint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@main
+      - uses: docker://kokuwaio/markdownlint
+
+  yamllint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@main
+      - uses: docker://kokuwaio/yamllint