Update python Docker tag to v3.9

3 jobs for renovate/docker-python-3.x in 5 minutes and 59 seconds (queued for 4 seconds)
latest
Status Job ID Name Coverage
  Test
failed #12424
lint

00:05:57

failed #12423
test

00:05:51

 
  Build
skipped #12425
build_dist
 
Name Stage Failure
failed
lint Test
| REPORT                                                                       |
| checked 121 packages, using default DB |
+==============================================================================+
| No known security vulnerabilities found. |
+==============================================================================+
___________________________________ summary ____________________________________
ERROR: lint: commands failed
security: commands succeeded
ERROR: Job failed: exit code 1
failed
test Test
If this is wrong, add "django_find_project = false" to pytest.ini and explicitly manage your Python path.
ERROR: InvocationError for command /usr/local/bin/poetry run pytest --doctest-modules --cov-report=term-missing --cov=infrablue/ --junitxml=.tox/junit.xml infrablue/ (exited with code 1)
___________________________________ summary ____________________________________
ERROR: py38: commands failed
Uploading artifacts for failed job
Uploading artifacts...
WARNING: .tox/junit.xml: no matching files
ERROR: No files to upload
ERROR: Job failed: exit code 1