surpress warnings on action

Author: cvanelteren

.github/workflows/build-ultraplot.yml

@@ -77,14 +77,14 @@ jobs:
           git fetch origin ${{ github.event.pull_request.base.sha }}
           git checkout ${{ github.event.pull_request.base.sha }}
           python -c "import ultraplot as plt; plt.config.Configurator()._save_yaml('ultraplot.yml')"
-          pytest --mpl-generate-path=baseline --mpl-default-style="./ultraplot.yml"
+          pytest -W ignore --mpl-generate-path=baseline --mpl-default-style="./ultraplot.yml"
           git checkout ${{ github.sha }}  # Return to PR branch
 
       - name: Image Comparison Ultraplot
         run: |
           mkdir -p results
           python -c "import ultraplot as plt; plt.config.Configurator()._save_yaml('ultraplot.yml')"
-          pytest --mpl --mpl-baseline-path=baseline --mpl-generate-summary=html --mpl-results-path=./results/ --mpl-default-style="./ultraplot.yml" --store-failed-only ultraplot/tests
+          pytest -W ignore --mpl --mpl-baseline-path=baseline --mpl-generate-summary=html --mpl-results-path=./results/ --mpl-default-style="./ultraplot.yml" --store-failed-only ultraplot/tests
 
       # Return the html output of the comparison even if failed
       - name: Upload comparison failures