DEVX-1278

- tweak git checkout settings for compatibility with latest update plugin

.github/workflows/publish_docs.yml

@@ -21,6 +21,7 @@ jobs:
         steps:
             -   name: Checkout
                 uses: actions/checkout@v4
+                fetch-depth: '0'
             -   name: Build TechDocs
                 uses: bcgov/devhub-techdocs-publish@stable
                 id: build_and_publish