build: update release script

.kokoro/release.sh

diff --git a/.kokoro/release.sh b/.kokoro/release.sh
index 7c13e97..cdd8687 100755
--- a/.kokoro/release.sh
+++ b/.kokoro/release.sh
@@ -23,7 +23,7 @@
 export PYTHONUNBUFFERED=1
 
 # Move into the package, build the distribution and upload.
-TWINE_PASSWORD=$(cat "${KOKORO_KEYSTORE_DIR}/73713_google-cloud-pypi-token-keystore-2")
+TWINE_PASSWORD=$(cat "${KOKORO_KEYSTORE_DIR}/73713_google-cloud-pypi-token-keystore-3")
 cd github/google-api-python-client
 python3 setup.py sdist bdist_wheel
 twine upload --username __token__ --password "${TWINE_PASSWORD}" dist/*

.kokoro/release/common.cfg

diff --git a/.kokoro/release/common.cfg b/.kokoro/release/common.cfg
index 27d14ba..c0e7a7d 100644
--- a/.kokoro/release/common.cfg
+++ b/.kokoro/release/common.cfg
@@ -28,16 +28,11 @@
   fetch_keystore {
     keystore_resource {
       keystore_config_id: 73713
-      keyname: "google-cloud-pypi-token-keystore-2"
+      keyname: "google-cloud-pypi-token-keystore-3"
     }
   }
 }
 
-# Tokens needed to report release status back to GitHub
-env_vars: {
-  key: "SECRET_MANAGER_KEYS"
-  value: "releasetool-publish-reporter-app,releasetool-publish-reporter-googleapis-installation,releasetool-publish-reporter-pem"
-}
 
 # Store the packages we uploaded to PyPI.  That way, we have a record of exactly
 # what we published, which we can use to generate SBOMs and attestations.