Feature/mx 1522 open code sync fix fetch depth (#66)

# PR Context
<!-- Additional info for the reviewer -->

# Added
<!-- New features and interfaces -->

# Changes
<!-- Changes in existing functionality -->

# Deprecated
<!-- Soon-to-be removed features -->

# Removed
<!-- Definitely removed features -->

# Fixed
set correct fetch depth

# Security
<!-- Fixed vulnerabilities -->

.github/workflows/open-code.yml

@@ -15,6 +15,7 @@ jobs:
         with:
           persist-credentials: false
           ref: 'main'
+          fetch-depth: '0'
       - name: Force push main branch
         run: |
           git remote add opencode https://RKIOpenData:${{ secrets.OPENCODE_TOKEN }}@gitlab.opencode.de/robert-koch-institut/mex/mex-common.git