Increase clone depth in CI builds (ros#30032)

This is a workaround for ros#29964

.github/workflows/build_test.yaml

@@ -11,16 +11,16 @@ jobs:
  steps:
  - uses: actions/checkout@v2
  with:
- fetch-depth: 2
+ fetch-depth: 5
  - name: Set up Python ${{ matrix.python-version }}
  uses: actions/setup-python@v1
  with:
  python-version: ${{ matrix.python-version }}
  - name: Fetch upstream (to enable diff)
  run: |
  git remote add unittest_upstream_comparision https://github.com/ros/rosdistro.git || git remote set-url unittest_upstream_comparision https://github.com/ros/rosdistro.git
- git fetch --no-tags --depth=1 unittest_upstream_comparision master
- git fetch --no-tags --depth=1 origin $GITHUB_BASE_REF
+ git fetch --no-tags --depth=5 unittest_upstream_comparision master
+ git fetch --no-tags --depth=5 origin $GITHUB_BASE_REF
  - name: Install Dependencies
  run: |
  python -m pip install --upgrade pip setuptools wheel