test: try Github's new parallel build feature

https://github.blog/changelog/2026-06-25-actions-steps-can-now-be-run-in-parallel/
https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-syntax#jobsjob_idstepsparallel

Author: autonomousapps

.github/workflows/test.yml

@@ -58,26 +58,27 @@ jobs:
         with:
           add-job-summary-as-pr-comment: 'on-failure'
 
-      - name: Execute buildHealth for build-logic
-        run: './gradlew -p build-logic/ buildHealth'
+      - parallel:
+          - name: Execute buildHealth for build-logic
+            run: './gradlew -p build-logic/ buildHealth'
 
-      - name: Execute check (build-logic)
-        run: './gradlew -p build-logic/ check'
+          - name: Execute check (build-logic)
+            run: './gradlew -p build-logic/ check'
 
-      - name: Execute buildHealth for main project
-        run: './gradlew buildHealth'
+          - name: Execute buildHealth for main project
+            run: './gradlew buildHealth'
 
-      - name: Execute buildHealth for testkit project
-        run: './gradlew -p testkit/ buildHealth'
+          - name: Execute buildHealth for testkit project
+            run: './gradlew -p testkit/ buildHealth'
 
-      - name: Execute check (non-functional tests)
-        run: './gradlew check -s -x :functionalTest'
+          - name: Execute check (non-functional tests)
+            run: './gradlew check -s -x :functionalTest'
 
-      - name: Execute check (testkit)
-        run: './gradlew -p testkit/ check'
+          - name: Execute check (testkit)
+            run: './gradlew -p testkit/ check'
 
-      - name: Execute JVM functional tests
-        run: './gradlew :functionalTest -DfuncTest.package=jvm -DfuncTest.quick'
+          - name: Execute JVM functional tests
+            run: './gradlew :functionalTest -DfuncTest.package=jvm -DfuncTest.quick'
 
       # Temporary to help debug "only fails on CI". https://github.com/autonomousapps/dependency-analysis-gradle-plugin/pull/1719
       # https://github.com/actions/upload-artifact