Don't run build and test if only docs changed (#24530)

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

.github/workflows/pull-db-tests-docsignore.yml

@@ -0,0 +1,38 @@
+name: db-tests
+
+on:
+  pull_request:
+    paths:
+      - "docs/**"
+      - "*.md"
+
+jobs:
+  test-pgsql:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "No build required"
+
+  test-sqlite:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "No build required"
+
+  test-unit:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "No build required"
+
+  test-mysql5:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "No build required"
+
+  test-mysql8:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "No build required"
+
+  test-mssql:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "No build required"