fix: Migrate missed Python version

[jesse-c]

Description

This was missed in #324.

Proposed version

Please select the option below that is most relevant from the list below. This
will be used to generate the next tag version name during auto-tagging.

• Skip auto-tagging
• Patch
• Minor version
• Major version

Visit the Semver website to understand the
difference between MAJOR, MINOR, and PATCH versions.

Notes:

• If none of these options are selected, auto-tagging will fail
• Where multiple options are selected, the most senior option ticked will be
  used -- e.g. Major > Minor > Patch
• If you are selecting the version in the list above using the textbox, make
  sure your selected option is marked [x] with no spaces in between the
  brackets and the x

Type of change

Please select the option(s) below that are most relevant:

• Bug fix
• New feature
• Breaking change
• GitHub workflow update
• Documentation update
• Refactor legacy code
• Dependency update

How Has This Been Tested?

Please describe the tests that you added to verify your changes.

Reviewer Checklist

• DB_CLIENT DEPENDENCY IS ON THE LATEST VERSION
• The PR represents a single feature (small driveby fixes are also ok)
• The PR includes tests that are sufficient for the level of risk
• The code is sufficiently commented, particularly in hard-to-understand areas
• Any required documentation updates have been made
• Any TODOs added are captured in future tickets
• No FIXMEs remain

[linear]

PLA-154 Migrate Navigator Backend to Python `3.10`

[katybaulch]

great spot!