CI/CD: run iOS integration tests in matrix

.github/workflows/status-checks.yml

@@ -185,6 +185,9 @@ jobs:
         with:
           name: integration-test-ios
           path: ./fastlane/build/*.zip
+      - name: Dynamically generate matrix for running integration tests
+        # This oneliner gets every test zip generated by Fastlane and writes this as output to GitHub. This is used for the matrix in the integration-test-ios job below.
+        run: echo "::set-output name=matrix::$(for file in $(ls ./fastlane/build/*.zip); do basename "$file"; done | jq -R . | jq -s .)"
   build-integration-test-android:
     runs-on: ubuntu-latest
     needs: build-irmagobridge-android
@@ -211,7 +214,10 @@ jobs:
     needs:
       - build-integration-test-ios
       - unit-test # To prevent that test resources are used when we already know there is an issue.
-    concurrency: integration-test-ios # To prevent that we use too much test resources at the same time.
+    strategy:
+      matrix:
+        file_name: ${{ fromJson(needs.build-integration-test-ios.outputs.matrix) }}
+    concurrency: integration-test-ios-${{ matrix.file_name }} # To prevent that we use too much test resources at the same time.
     steps:
       - name: Download test artifacts
         uses: actions/download-artifact@v4
@@ -227,15 +233,11 @@ jobs:
         run: gcloud config set project yivimobile
       - name: Run integration tests for each zip file
         run: |
-          for zip_file in *.zip; do
-            echo "Running integration test for $zip_file"
-            gcloud firebase test ios run \
-              --test $zip_file \
-              --timeout 20m \
-              --device=model=iphone8,orientation=portrait \
-              --device=model=iphone8,orientation=landscape &
-          done
-          wait
+          gcloud firebase test ios run \
+            --test ${{ matrix.file_name }} \
+            --timeout 7m \
+            --device=model=iphone8,orientation=portrait \
+            --device=model=iphone8,orientation=landscape
   integration-test-android:
     runs-on: ubuntu-latest
     container: google/cloud-sdk:latest