chore(deps): update dependency pycryptodome to v3.21.0 (#12955)

Author: renovate-bot

cloud-media-livestream/keypublisher/requirements.txt

@@ -2,7 +2,7 @@ Flask==2.2.5
 functions-framework==3.5.0
 google-cloud-secret-manager==2.12.1
 lxml==4.9.4
-pycryptodome==3.19.1
+pycryptodome==3.21.0
 pyOpenSSL==24.0.0
 requests==2.31.0
 signxml==3.2.0