Update redis to v7.1.0, cachetools to v6.2.2.0 and gevent to v25.9.1

[rmccar]

What is the context of this PR?

This PR updates all the dependancies from this PR that aren't Marshmallow.

These are:

• redis
• cachetools
• gevent

This is due to some linting errors being surfaced by the update of Marshmallow, I have taken the decision to split it out into another PR.

How to review

• Tests pass
• Runner spins up locally and loads schemas as expected

Checklist

• New static content marked up for translation
• Newly defined schema content included in eq-translations repo

[VirajP1002]

Minor comment, I was just glancing at the PR but would it be worth having the dependencies you update in the title? Just since it might be misinterpreted 😅

[rmccar]

Minor comment, I was just glancing at the PR but would it be worth the title having the dependencies you update? Just since it might be misinterpreted 😅

Yeah good point, updated

[berroar]

This will need some performance testing, as there are a couple of significant bumps here 👍

[ons-eq-team]

Benchmark Results

Percentile Averages:
50th: 83ms
90th: 331ms
95th: 545ms
99th: 1047ms
99.9th: 1681ms
GETs (99th): 1265ms
POSTs (99th): 796ms

PDF: 12000ms
Session: 8000ms

Total Requests: 64,034
Total Failures: 0
Error Percentage: 0.0%

[liamtoozer]

Might be worth kicking off another performance test run here again, since the branch has updated with main a few times since then 👍