Revert "temporarily remove other workflow for fast running"

This reverts commit 68200dcbe9.

.github/workflows/test-docs.yml

@@ -0,0 +1,21 @@
+# ATTENTION: Although this workflow doesn't do much, it is still important.
+# It is complementary to the workflow in the file test-code.yml.
+# It enables to exclude files for the workflow and still mark the Test job as required without having pending PRs.
+# GitHub recommends this solution here:
+# https://docs.github.com/en/repositories/configuring-branches-and-merges-in-your-repository/defining-the-mergeability-of-pull-requests/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+
+name: ZITADEL PR
+
+on:
+  pull_request:
+    paths:
+      - 'docs/**'
+      - 'guides/**'
+      - '**.md'
+      - 'release-channels.yaml'
+
+jobs:
+  Build-ZITADEL:
+    runs-on: ubuntu-20.04
+    steps:
+      - run: 'echo "No tests for docs are implemented, yet"'