Log errors when listing repositories (#4020)

We seem to have an issue with listing repos in the Oauth smoke test
flow. This should provide us with more context about what is going on.

internal/controlplane/handlers_repositories.go

@@ -335,6 +335,7 @@ func (s *Server) ListRemoteRepositoriesFromProvider(
 	for providerName, provider := range provs {
 		results, err := s.fetchRepositoriesForProvider(ctx, projectID, providerName, provider)
 		if err != nil {
+			zerolog.Ctx(ctx).Error().Err(err).Msgf("error listing repositories for provider %s in project %s", providerName, projectID)
 			errorProvs = append(errorProvs, providerName)
 			continue
 		}