improve CI

.github/workflows/ci.yml

@@ -54,6 +54,7 @@ jobs:
           - "split_fastq"
           - "targeted"
           - "tumor_normal_pair"
+
     steps:
       - name: Check out pipeline code
         uses: actions/checkout@v2
@@ -68,15 +69,21 @@ jobs:
           wget -qO- get.nextflow.io | bash
           sudo mv nextflow /usr/local/bin/
           nextflow self-update
+
       - name: Set up Python
         uses: actions/setup-python@v2
         with:
           python-version: "3.x"
+
       - name: Install dependencies
         run: python -m pip install --upgrade pip pytest-workflow
 
       - name: Run pipeline with tests settings
-        run: pytest --tag ${{ matrix.test }} --symlink --kwdof --git-aware --color=yes
+        uses: Wandalen/wretry.action@v1.0.11
+        with:
+          command: pytest --tag ${{ matrix.test }} --symlink --kwdof --git-aware --color=yes
+          attempt_limit: 3
+
       - name: Output log on failure
         if: failure()
         run: |