Bump jenkins/ssh-agent in /04_python_tutorial/dockerfiles/agent (#584)

Bumps jenkins/ssh-agent from 5.47.0-jdk17 to 5.48.0-jdk17.

---
updated-dependencies:
- dependency-name: jenkins/ssh-agent
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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04_python_tutorial/dockerfiles/agent/Dockerfile

@@ -1,5 +1,5 @@
 # Use the base image
-FROM jenkins/ssh-agent:5.47.0-jdk17 as ssh-agent
+FROM jenkins/ssh-agent:5.48.0-jdk17 as ssh-agent
 
 # Install necessary dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \