CODEOWNERS: Make backend squad owners of backend style guidelines (#30266)
CODEOWNERS: Make backend squad owners of backend style guidelines (#30266)

* CODEOWNERS: Make backend squad owners of backend style guidelines

Signed-off-by: Arve Knudsen <ddb1ca96248d128f0719f3f79aee1e346dace4b9@gmail.com>

Co-authored-by: Emil Tullstedt <0b68df1f5ad6f8adf0427629da563a13dca58ba9@grafana.com>

grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana