Merge pull request 'OZG-6368-Jenkins' (#789) from OZG-6368-Jenkins into master

alfa-client/Jenkinsfile.e2e

alfa-client/Jenkinsfile.e2e.static

alfa-client/apps/admin-e2e/README.md

alfa-client/apps/admin-e2e/cypress-ci-main-tests.config.ts

alfa-client/apps/admin-e2e/cypress-ci.json

alfa-client/apps/admin-e2e/cypress.config.json

...pps/admin-e2e/src/e2e/main-tests/app/0-login-logout.cy.ts

...ent/apps/admin-e2e/src/e2e/main-tests/app/buildinfo.cy.ts

.../src/e2e/main-tests/benutzer_rollen/benutzer_rollen.cy.ts

...apps/admin-e2e/src/e2e/main-tests/postfach/signatur.cy.ts

...ient/apps/admin-e2e/src/fixtures/argocd/by-admin-dev.yaml

alfa-client/apps/alfa-e2e/README.md

alfa-client/apps/alfa-e2e/cypress.config.json

alfa-client/apps/alfa-e2e/run-tests.sh

alfa-client/apps/alfa-e2e/src/fixtures/argocd/by-ea-dev.yaml

...client/apps/alfa-e2e/src/fixtures/argocd/by-main-dev.yaml

alfa-client/apps/run-tests.sh

...rgang/forwarding/ForwardingLandesnetzInfoServiceTest.java