feat(workflow): Adding a GitHub workflow for test docstrings validation

.github/workflows/docstring_validation.yml

@@ -0,0 +1,29 @@
+---
+name: Test Docstrings Validation
+
+on:
+  pull_request:
+    paths:
+      - "integration-tests/**"
+
+jobs:
+  betelgeuse:
+    name: "betelgeuse dry-run"
+    runs-on: ubuntu-latest
+    container:
+      image: fedora:latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Base setup for Betelgeuse
+        run: |
+          dnf --setopt install_weak_deps=False install -y \
+              python3-pip
+          python3 -m pip install betelgeuse
+
+      - name: Run Betelgeuse
+        run: |
+          PYTHONPATH=integration-tests/ betelgeuse --config-module \
+            custom_betelgeuse_config test-case --dry-run \
+            integration-tests/ dryrun_project ./test_case.xml

integration-tests/custom_betelgeuse_config.py

@@ -0,0 +1,15 @@
+from betelgeuse import default_config
+
+TESTCASE_CUSTOM_FIELDS = default_config.TESTCASE_CUSTOM_FIELDS + (
+    "casecomponent",
+    "requirement",
+    "subsystemteam",
+    "tier",
+    "reference",
+)
+
+DEFAULT_CASECOMPONENT_VALUE = ""
+DEFAULT_REQUIREMENT_VALUE = ""
+DEFAULT_SUBSYSTEMTEAM_VALUE = ""
+DEFAULT_TIER_VALUE = ""
+DEFAULT_REFERENCE_VALUE = ""