Only make lightweight tags in CD (#391)

Author: TwistedTwigleg

utils/publish-release.sh

@@ -64,8 +64,8 @@ git fetch
 git checkout main
 git pull "https://${GITHUB_ACTOR}:${GITHUB_TOKEN}@github.com/aws/aws-iot-device-sdk-python-v2.git" main
 
-# Create new tag on latest commit with the release title
-git tag -f v${new_version} -m "${RELEASE_TITLE}"
+# Create new tag on latest commit (lightweight tag - we do NOT want an annotated tag)
+git tag -f v${new_version}
 # Push new tag to github
 git push "https://${GITHUB_ACTOR}:${GITHUB_TOKEN}@github.com/aws/aws-iot-device-sdk-python-v2.git" --tags