chore(deps): update python:3.13.5-slim-bullseye docker digest to 631af3f (#6957)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| python | stage | digest | `77cabcb` -> `631af3f` |

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dependencies.Dockerfile

@@ -1,4 +1,4 @@
 # This is a renovate-friendly source of Docker images.
-FROM python:3.13.5-slim-bullseye@sha256:77cabcb54d2633f258b3ed4c19d779918b385908262e27ef8d8067eb68fb527a AS python
+FROM python:3.13.5-slim-bullseye@sha256:631af3fee9d0b0a046855a62af745c1f94b75c5309be8802a0928cce3ac0f98d AS python
 FROM otel/weaver:v0.15.3@sha256:a84032d6eb95b81972d19de61f6ddc394a26976c1c1697cf9318bef4b4106976 AS weaver
 FROM avtodev/markdown-lint:v1@sha256:6aeedc2f49138ce7a1cd0adffc1b1c0321b841dc2102408967d9301c031949ee AS markdown