ci: fetch tags

Author: Enda Phelan

.github/workflows/changelog.yml

@@ -10,8 +10,9 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
+      
+      - name: Fetch changes
+        run: git fetch origin --prune --tags --unshallow
 
       - 
         name: Install git-chglog