Move E2E tests into cd workflow

The run-cypress-tests workflow was anly called from cd workflow and
the run-cypress-tests workflow only contained two steps of which
one will be removed by the next commit, i.e. having the
run-cypress-tests as a separate workflow does not really have a reason.

Author: Janne Rönkkö

.github/workflows/cd.yml

@@ -87,4 +87,13 @@ jobs:
     needs:
       - run_kotlin_tests
       - publish_docker_image_to_docker_hub
-    uses: ./.github/workflows/run-cypress-tests.yml
+    name: Run E2E tests
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Extract metadata to env variables
+        uses: HSLdevcom/jore4-tools/github-actions/extract-metadata@extract-metadata-v1
+
+      - name: Start e2e env
+        uses: HSLdevcom/jore4-tools/github-actions/run-ci@main
+        with:
+          timetablesapi_version: "${{ env.IMAGE_NAME }}:${{ env.COMMIT_ID }}"