CE-3082: Run integration tests locally
Changes in ITs:
- Use HttpClient instead of curl for REST calls
- Fix malformed URLs
- Adjust timeout on containers startup
Bug fixes in codebase:
- Fix typos in JPQL (They haven't been refactored correctly)
- Fix check structure existence
Run it locally with:
- build the project:
mvn clean package
- run ITs:
mvn failsafe:integration-test -DskipITs=false
Closes CE-3082