* TProxy integration test
* Fix GHA compatibility integration test command
Previously, when test splitting allocated multiple test directories to a
runner, the workflow ran `go tests "./test/dir1 ./test/dir2"` which
results in a directory not found error. This fixes that.
* draft
* expose internal admin port and add proxy test
* update tests
* move comment
* add failure case, fix lint issues
* cleanup
* handle error
* revert changes to service interface
* address review comments
* fix merge conflict
* merge the tests so cluster is created once
* fix other test