Remove unshallow parameter

Signed-off-by: Heiko Kiesel <heiko.kiesel@iteratec.com>

Author: Heiko Kiesel

.github/workflows/snapshot.yml

@@ -21,7 +21,7 @@ jobs:
       uses: actions/checkout@v3
 
     - name: Fetch git tags # Required for axion-release-plugin
-      run: git fetch --tags --unshallow
+      run: git fetch --tags
 
     - name: Set up JDK 17
       uses: actions/setup-java@v3