fix: Update cryptography to 46.0.7 in gcp/functions/pypi (#5221)

This PR updates the `cryptography` dependency in `gcp/functions/pypi`
from 46.0.6 to 46.0.7 to address a security vulnerability
[GHSA-p423-j2cm-9vmq](https://osv.dev/GHSA-p423-j2cm-9vmq).

Author: cuixq

gcp/functions/pypi/poetry.lock

@@ -2,7 +2,7 @@
 name = "pypi-publish"
 requires-python = ">=3.13,<4.0"
 dependencies = [
-    "cryptography (==46.0.6)",
+    "cryptography (==46.0.7)",
     "google-cloud-secret-manager (==2.26.0)",
     "osv (==0.1.2)",
     "requests (==2.33.0)",