gci: Add the JSON report plugin to the ci configuration

.github/workflows/ci.yaml

@@ -173,6 +173,7 @@ jobs:
             pytest-sentry \
             pytest-test-groups==1.0.3 \
             pytest-custom-exit-code==0.3.0 \
+            pytest-json-report \
             mypy==0.790
 
           git clone https://github.com/lightningnetwork/lightning-rfc.git ../lightning-rfc
@@ -186,7 +187,7 @@ jobs:
 
           cat << 'EOF' > pytest.ini
           [pytest]
-          addopts=-p no:logging --color=yes --timeout=1800 --timeout-method=thread --test-group-random-seed=42 --force-flaky --no-success-flaky-report --max-runs=3 --junitxml=report.xml
+          addopts=-p no:logging --color=yes --timeout=1800 --timeout-method=thread --test-group-random-seed=42 --force-flaky --no-success-flaky-report --max-runs=3 --junitxml=report.xml --json-report --json-report-file=report.json --json-report-indent=2
           markers =
               slow_test: marks tests as slow (deselect with '-m "not slow_test"')
           EOF
@@ -253,4 +254,4 @@ jobs:
         uses: actions/upload-artifact@v2
         with:
           name: Junit Report ${{ github.run_number }}.${{ matrix.cfg }}
-          path: report.xml
+          path: report.*