chore: add optional ref input

Author: OmarAlJarrah

.github/workflows/generate-docs-site.yml

@@ -15,18 +15,9 @@ permissions:
 jobs:
   deploy-reference-docs:
     runs-on: ubuntu-latest
-    steps:
-      - name: Set Target Ref
-        shell: python -u {0}
-        run: |
-          ref = "${{ inputs.ref }}" if "${{ inputs.ref }}" != "" else "${{ github.ref }}"
-          
-          with open("$GITHUB_ENV", "a") as env_file:
-            print(f"TARGET_REF={ref}", file=env_file)
-
-      - uses: "ExpediaGroup/expediagroup-java-sdk/.github/workflows/generate-ref-docs.yaml@OmarAlJarrah/reusable-generate-reference-docs-gh-action"
-        with:
-          buildsystem: 'maven'
-          ref: ${{ env.TARGET_REF }}
-        secrets:
-          GITHUB_PAT: ${{ secrets.GH_PERSONAL_ACCESS_TOKEN }}
+    uses: ExpediaGroup/expediagroup-java-sdk/.github/workflows/generate-ref-docs.yaml@OmarAlJarrah/reusable-generate-reference-docs-gh-action
+    with:
+      buildsystem: 'maven'
+      ref: ${{ inputs.ref != '' && inputs.ref || github.ref }}
+    secrets:
+      GITHUB_PAT: ${{ secrets.GH_PERSONAL_ACCESS_TOKEN }}