What does this PR do?

Adds support for Testcontainers 1.19.8 and up, used by the current Spring Boot 3.3.x line. Reuses #132 + #301 and upgrades the version.

Closes #492.

Code sections where the PR accesses files, network, docker or some external service

Tests are not enabled, same as current tests for Testcontainers 1.17.6 because it pulls a docker image with critical CVEs.

Checklist before merging

• I have considered including reachability metadata directly in the library or the framework (see our contributing document)
• I am the original author of all content provided in the pull request, and I did not copy the content from any other source (see the tests section from our contributing document)
• For all tests where I am not the sole author, I have added a comment that proves I may publish them under the specified license (see the tests section from our contributing document)
• I have properly formatted metadata files (see our formatting guide)
• I have added thorough tests (see the tests section from our contributing document)
• I have filled all places where my pull request accesses files, network, docker, or any other external service (see the section above)