[ci] fix VFX2022 runner

[antond-weta]

Description

Tests

Checklist:

• I have read the contribution guidelines.
• I have updated the documentation, if applicable. (Check if there is no
  need to update the documentation, for example if this is a bug fix that
  doesn't change the API.)
• I have ensured that the change is tested somewhere in the testsuite
  (adding new test cases if necessary).
• My code follows the prevailing code style of this project. If I haven't
  already run clang-format before submitting, I definitely will look at the CI
  test that runs clang-format and fix anything that it highlights as being
  nonconforming.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.32%. Comparing base (a11c5c2) to head (1ec609d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #298   +/-   ##
=======================================
  Coverage   91.32%   91.32%           
=======================================
  Files          17       17           
  Lines        3551     3551           
  Branches      527      527           
=======================================
  Hits         3243     3243           
  Misses        308      308           

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[soswow]

what's happening? Should this be a signal to do something with our node version instead?

[antond-weta]

https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
that OS is too old to run a more recent version