Update release.yml (paritytech#265)

The Release workflow used to work with a fetch-depth: 0 - not sure why this is required but yolo-ing it in for a test

Author: xermicus

.github/workflows/release.yml

@@ -29,6 +29,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-tags: true
+          fetch-depth: 0
 
       - name: Check Versions
         id: versions