* PT-2248 - pt-k8s-debug-collector does not run pg_gather with K8SPG 2
- Added check for K8SPG 2, so can run pg_gather for it
- Added new allowed value for option --resource:
-- pgv2 for K8SPG 2
-- auto to auto-detect custom resource
- Option --resource has now default value "auto"
- Updated documentation
- Added test cases for new options
* PT-2248 - pt-k8s-debug-collector does not run pg_gather with K8SPG 2
- Implemented custom user and secrets handling (in case when no default
user exists).