Fetch whole repo in test and coverage workflow

This is needed because otherwise the version string determined by hatch upon building the bo4e package will have wrong syntax.
With this PR we expect the version string to have a specific syntax for the version.

Author: lord-haffi

.github/workflows/coverage.yml

@@ -10,6 +10,8 @@ jobs:
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:

.github/workflows/tests.yml

@@ -10,6 +10,8 @@ jobs:
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with: