feat: Migrate to Python 3.10

[jesse-c]

Description

As part of upgrading all our systems.

Proposed version

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Type of change

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How Has This Been Tested?

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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]

Nice! Have you checked the Python version in the trunk.yaml file to make sure that is also 3.10.x (as trunk config is version controlled for this repo)?

[jesse-c]

@katybaulch: I hadn't explicitly! I just did now, and it's already on 3.10.x [1]. I've done a grep for python.*3\.9 and there's no results now.

[1]

navigator-backend/.trunk/trunk.yaml

Line 22 in d888744

- [email protected]

[katybaulch]

@katybaulch: I hadn't explicitly! I just did now, and it's already on 3.10.x [1]. I've done a grep for python.*3\.9 and there's no results now.

[1]

navigator-backend/.trunk/trunk.yaml

Line 22 in d888744

- [email protected]

Eyyy nice one, go for the merge!