* GitHub proxy part 6: proxing Git using SSH transport
* better command parsing and update suite
* refactor
* revert unnecearrty files
* address review comments
* ut fix
* revert localsite_test.go
* change special suffix to teleport-github-org for routing
* fix routing ut
* minor typo edit
* fix ut after sshca change
* add UT to sshutils
* minor review comments
* fix api ut because of special suffix change
* GitServerReadOnlyClient
* downgrade error to warning
* run go mod tidy. not sure why it's needed
* rename mock.go to mock_test.go
* git_server resource and role.allow.github_permissions
* implicit RO on KindGitServer
* review comments
* fix ut
* make -C integrations/operator crd
* fix ut again
* make crds-up-to-date and make -C integrations/terraform docs
STeve (Xin) Huang