checkout repo (#14)

Author: dzlab

.github/workflows/publish-javadoc.yml

@@ -12,6 +12,10 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 1
 
       - name: Set up Java
         uses: actions/setup-java@v3