Add ACME/Certbot E2E tests with Pebble integration and update dependencies in CI workflows

- Introduced `docker-compose-acme-e2e.yml` for end-to-end testing with Pebble test server.
- Added tests to validate ACME challenge routing, certificate issuance, HTTPS functionality, and HAProxy configuration.
- Implemented CA certificate download fixture (`create_pebble_ca_file`) for test session initialization.
- Updated `.gitignore` to exclude Pebble-related files.
- Modified CI workflows to include `needs: [Test]` dependencies for E2E jobs, ensuring proper sequencing.

.github/workflows/build.yml

@@ -43,6 +43,7 @@ jobs:
   Tests-E2E-Docker:
     runs-on: ubuntu-latest
     timeout-minutes: 20
+    needs: [Test]
     permissions:
       contents: read
 
@@ -66,6 +67,7 @@ jobs:
   Tests-E2E-Kubernetes:
     runs-on: ubuntu-latest
     timeout-minutes: 30
+    needs: [Test]
     permissions:
       contents: read
 
@@ -88,6 +90,7 @@ jobs:
 
   Tests-E2E-Static:
     runs-on: ubuntu-latest
+    needs: [Test]
     timeout-minutes: 20
     permissions:
       contents: read