chore(deps): bump jenkins/ssh-agent in /dockerfiles/python (#658)

Bumps jenkins/ssh-agent from 5.47.0 to 5.48.0.

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

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

Author: dependabot[bot]

dockerfiles/python/Dockerfile

@@ -1,7 +1,7 @@
 # This Dockerfile is used to create a Jenkins SSH agent with Python and several Python packages installed in order to run the python sample tutorial.
 
 # We start from the Jenkins SSH agent image version 5.20.0.
-FROM jenkins/ssh-agent:5.47.0 as ssh-agent
+FROM jenkins/ssh-agent:5.48.0 as ssh-agent
 
 # The RUN command executes a series of commands in the new layer of the image and commits the results.
 # The following commands are executed: