[misc] Summarize the management integration test run as well

Management / Integration (amd64, sqlite) hit the 20 minute budget on this
branch and left the same unreadable goroutine dump the unit job used to,
with the list of running tests out of reach. The job now pipes the mage run
through tools/gotestsummary and keeps the raw events on failure, like the
unit job.

.github/workflows/golang-test-linux.yml

@@ -756,12 +756,27 @@ jobs:
       - name: check git status
         run: git --no-pager diff --exit-code
 
+      # Same summary as the unit job: a timeout here names the tests still
+      # running instead of ending in a goroutine dump.
       - name: Test
+        shell: bash
         run: |
+          set -o pipefail
           CGO_ENABLED=1 GOARCH=${{ matrix.arch }} \
           NETBIRD_STORE_ENGINE=${{ matrix.store }} \
           CI=true \
-          mage integrationtest:all -gotestflags="-coverprofile=coverage.txt"
+          mage integrationtest:all -gotestflags="-json -coverprofile=coverage.txt" \
+            | tee management-integration-test-events.jsonl \
+            | go run ./tools/gotestsummary
+
+      - name: Upload raw test events
+        if: failure()
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a #v7.0.1
+        with:
+          name: management-integration-test-events-${{ matrix.store }}
+          path: management-integration-test-events.jsonl
+          if-no-files-found: ignore
+          retention-days: 14
 
       - name: Upload coverage reports to Codecov
         if: matrix.arch == 'amd64'