Add CODEOWNERS for easy tagging of reviewers based on folder structure #12016

Job	Run time
javascript-lint	7s
Detect which file has changed	5s
helm-lint	0s
markdown-lint	0s
python-lint	0s
yaml-lint	0s
action-lint	0s
infrahub-poetry-check	0s
backend-tests-integration	0s
backend-tests-functional	0s
backend-tests-unit	0s
backend-validate-generated	0s
documentation	0s
validate-documentation-style	0s
validate-generated-documentation	0s
E2E-testing-playwright	13m 22s
E2E-testing-invoke-demo-start	7m 30s
backend-benchmark	0s
frontend-tests	0s
coverall-report	2s
	21m 6s

Provide feedback