other(codeowners): exclude files Renovate often updates (#3325)

* other(codeowners): add renovate-approve

This allow auto-merging dep upgrades that pass CI checks

* other(codeowners): add renovate-approve on new line

* other(codeowners): add renovate entry

* other(codeowners) - correct renovate location

* other(codeowners): exclude files Renovate often updates

* other(codeowners): Add explanatory comment

(cherry picked from commit 9d9fdac)

CODEOWNERS

@@ -1,2 +1,7 @@
 # These owners will be the default owners for everything in the repo.
-* @camunda/connectors
+* @camunda/connectors 
+
+# These files are excluded so that Renovate can automatically merge dependency upgrades
+renovate.json5
+.ci/preview-environments/charts/c8sm/Chart.yaml
+**/pom.xml