ci: improve workflows

[wellwelwel]

This PR reorganizes the tests in a way that allows reusing MySQL versions and variations.

Also, MySQL 9 will also run through the coverage workflow, preventing issues like in #3379 (and that's how I discovered the related issue).

Another point is that we only tested version 8.0.x, instead of every minor versions.

Now, we test:

• mysql:5.7
• mysql:8.0
• mysql:8.1 (new)
• mysql:8.2 (new)
• mysql:8.3 (new)
• mysql:8.4 (soon)
• mysql:9.0
• mysql:9.1 (new)
• mysql:9.2 (previously as latest)

I've also reused it better to avoid repeated tests, reducing from 116 to 100 workflows in total.

Finally, I updated all Node.js 20.x to the latest LTS (22).

Related

• build(deps-dev): bump @types/node from 22.13.0 to 22.13.1 #3376 (comment)

Note

• If there's a specific patch version worth adding, we can also add it to ci-mysql.yml when needed.
• Some tests never finish in MySQL 8.4, I intend to investigate this further soon.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.77%. Comparing base (603c246) to head (da7aaf9).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3380      +/-   ##
==========================================
+ Coverage   88.69%   88.77%   +0.08%     
==========================================
  Files          85       85              
  Lines       13448    13448              
  Branches     1532     1535       +3     
==========================================
+ Hits        11928    11939      +11     
+ Misses       1520     1509      -11     

Flag	Coverage Δ
compression-0	88.77% <ø> (+0.08%)	⬆️
compression-1	88.77% <ø> (+0.08%)	⬆️
static-parser-0	86.33% <ø> (+0.06%)	⬆️
static-parser-1	87.16% <ø> (+0.07%)	⬆️
tls-0	88.19% <ø> (+0.08%)	⬆️
tls-1	88.54% <ø> (+0.08%)	⬆️

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