build(deps): bump python in /events/docker (#1643)

Bumps python from 3.11.2-slim to 3.11.3-slim.

---
updated-dependencies:
- dependency-name: python
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

events/docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.11.2-slim
+FROM python:3.11.3-slim
 
 ADD tools /src/tools
 ADD events /src/events