* test: test stateful ingestion for kafka
test: some more advancement
test: some improvements
refactoring
* refactor: remove some linter modifications
* tests: add unit tests for kafka state
* refactor: minor changes
* tests: improve test coverage
* fix: fix naming
* style: fix format with black
* fix: fix broken test
* revert: revert smoke tests to master
* feat: add reporting to kafka source
* tests: add smoke tests for kafka reporting
* revert: revert changes to the smoke tests
* test: add kafka integration test for stateful ingestion
* docs: update documentation on kafka source
* fix: return empty string when no platform instance
* revert: remove unwanted file
* fix: solve problem with platform instance
* chore: use console sink instead of file
* fix: disable complexity check for _extract_record
* fix: remove if condition in get_platform_instance_id
* chore: remove unneeded integration test
* test: test platform instance in kafka source unit tests