ci: cleanup quarto check raw output

Author: mcanouil

.github/workflows/devcontainer.yml

@@ -77,15 +77,17 @@ jobs:
           QUARTO_VERSION: ${{ matrix.QUARTO_VERSION }}
           DEVCONTAINER_RUN_CMD: ${{ steps.devcontainer-ci.outputs.runCmdOutput }}
         run: |
+          FILTERED_OUTPUT=$(echo "${DEVCONTAINER_RUN_CMD}" | grep -v '^\(|\)\|^(/)\|^(-)\|^(\\)')
+          
           echo "::group::Quarto Check"
-          echo "${DEVCONTAINER_RUN_CMD}"
+          echo "${FILTERED_OUTPUT}"
           echo "::endgroup::"
 
           echo "## Quarto Check Results: ${QUARTO_VERSION}" >>$GITHUB_STEP_SUMMARY
           echo "<details><summary>Quarto Check Results</summary>" >>$GITHUB_STEP_SUMMARY
           echo "" >>$GITHUB_STEP_SUMMARY
           echo '```txt' >>$GITHUB_STEP_SUMMARY
-          echo "${DEVCONTAINER_RUN_CMD}" >>$GITHUB_STEP_SUMMARY
+          echo "${FILTERED_OUTPUT}" >>$GITHUB_STEP_SUMMARY
           echo '```' >>$GITHUB_STEP_SUMMARY
           echo "" >>$GITHUB_STEP_SUMMARY
           echo "</details>" >>$GITHUB_STEP_SUMMARY