chore: use fetch-depth to fetch complete history

Fixes the issue of publishing all commit since inception (see: goreleaser/goreleaser#990)

.github/workflows/release.yml

@@ -22,10 +22,8 @@ jobs:
 
     - name: Checkout code
       uses: actions/checkout@v2
-
-    # So GoReleaser can generate the changelog properly
-    - name: Unshallowify the repo clone
-      run: git fetch --prune --unshallow
+      with:
+        fetch-depth: 0
 
     # https://github.community/t5/GitHub-Actions/How-to-get-just-the-tag-name/m-p/32167/highlight/true#M1027
     - name: Print Go version and environment