e2e tests: use ghcr registry for otel images (#1284)

Signed-off-by: Jan Wozniak <[email protected]>

Author: wozniakjan

tests/utils/setup_test.go

@@ -18,7 +18,7 @@ import (
 var (
 	OtlpConfig = `mode: deployment
 image:
-  repository: "otel/opentelemetry-collector-contrib"
+  repository: "ghcr.io/open-telemetry/opentelemetry-collector-releases/opentelemetry-collector-contrib"
 config:
   exporters:
     debug: