Cleanup (#45)

* Removed S3 client

* Removed unused CORS in config, added it to HTTP

Added testcontainers for testing (#38)

Fixed linter

Fixed test

Bump google.golang.org/protobuf from 1.34.2 to 1.35.1 (#28)

Bumps google.golang.org/protobuf from 1.34.2 to 1.35.1.

---
updated-dependencies:
- dependency-name: google.golang.org/protobuf
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Code quality improvements