storage: re-enable KMS integration test

The failures were a result of a behavior change for KMS regions that
is being rolled out. Switching to use a key in the same region as
the bucket will fix the failure. I validated that this works
locally with the project/keychain that I'm switching to.

Fixes #1787

Change-Id: I1cc3090069df874e3d58fc5174457e3becc267e0
Reviewed-on: https://code-review.googlesource.com/c/gocloud/+/52270
Reviewed-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Tyler Bui-Palsulich <tbp@google.com>
diff --git a/internal/kokoro/continuous.sh b/internal/kokoro/continuous.sh
index cfb526e..2dcc153 100755
--- a/internal/kokoro/continuous.sh
+++ b/internal/kokoro/continuous.sh
@@ -22,7 +22,7 @@
 export GCLOUD_TESTS_GOLANG_FIRESTORE_PROJECT_ID=gcloud-golang-firestore-tests
 export GCLOUD_TESTS_GOLANG_FIRESTORE_KEY=$KOKORO_KEYSTORE_DIR/72523_go_firestore_integration_service_account
 export GCLOUD_TESTS_API_KEY=`cat $KOKORO_KEYSTORE_DIR/72523_go_gcloud_tests_api_key`
-export GCLOUD_TESTS_GOLANG_KEYRING=projects/dulcet-port-762/locations/global/keyRings/go-integration-test
+export GCLOUD_TESTS_GOLANG_KEYRING=projects/dulcet-port-762/locations/us/keyRings/go-integration-test
 export GCLOUD_TESTS_GOLANG_PROFILER_ZONE="us-west1-b"
 
 # Fail on any error
diff --git a/storage/integration_test.go b/storage/integration_test.go
index cccaa91..e3d4b3c 100644
--- a/storage/integration_test.go
+++ b/storage/integration_test.go
@@ -2714,8 +2714,6 @@
 }
 
 func TestIntegration_KMS(t *testing.T) {
-	t.Skip("https://github.com/googleapis/google-cloud-go/issues/1787")
-
 	ctx := context.Background()
 	client := testConfig(ctx, t)
 	defer client.Close()