ci: replace projectID for integration tests (googleapis#2962)

* ci: replace projectID for integration tests

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* update project id

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: 2 people

.kokoro/nightly/integration-directpath-enabled.cfg

@@ -13,12 +13,12 @@ env_vars: {
 # TODO: remove this after we've migrated all tests and scripts
 env_vars: {
   key: "GCLOUD_PROJECT"
-  value: "java-docs-samples-testing"
+  value: "cloud-java-ci-sample"
 }
 
 env_vars: {
   key: "GOOGLE_CLOUD_PROJECT"
-  value: "java-docs-samples-testing"
+  value: "cloud-java-ci-sample"
 }
 
 env_vars: {

.kokoro/nightly/integration.cfg

@@ -13,12 +13,12 @@ env_vars: {
 # TODO: remove this after we've migrated all tests and scripts
 env_vars: {
   key: "GCLOUD_PROJECT"
-  value: "java-docs-samples-testing"
+  value: "cloud-java-ci-sample"
 }
 
 env_vars: {
   key: "GOOGLE_CLOUD_PROJECT"
-  value: "java-docs-samples-testing"
+  value: "cloud-java-ci-sample"
 }
 
 env_vars: {