Update codeowners (#1004)

* Add gkech to codeowners

* remove old codeowner

* remove codeowner

* move codeowner

* fix typo

Author: gkech

.github/CODEOWNERS

@@ -1,3 +1,3 @@
-* @hors @egegunes @inelpandzic @pooknull
-/e2e-tests/ @tplavcic @nmarukovich @ptankov @jvpasinatto @eleo007
-Jenkinsfile @tplavcic @nmarukovich @ptankov @jvpasinatto @eleo007
+* @hors @egegunes @pooknull @nmarukovich @gkech
+/e2e-tests/ @ptankov @jvpasinatto @eleo007
+Jenkinsfile @ptankov @jvpasinatto @eleo007