CI: Enabled running tests on pull requests

[stemann]

• CI: Updated test workflow from PkgTemplates generated CI workflow
  • Also, added julia-cache and codecov-action actions.
• Fixed (TIFF) tests on Windows

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.93%. Comparing base (2ea85e8) to head (6966204).
Report is 53 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master      #68       +/-   ##
===========================================
+ Coverage   69.23%   94.93%   +25.70%     
===========================================
  Files           1        1               
  Lines          26       79       +53     
===========================================
+ Hits           18       75       +57     
+ Misses          8        4        -4     

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[stemann]

Might want to allow failurefix tests on Windows for the time being....

[stemann]

The TIFF tests on Windows were misbehaving since the same file was opened after having been previously opened with mmap: https://github.com/tlnagy/TiffImages.jl/blob/v0.10.0/src/utils.jl#L139

Example of TIFF tests failing on Windows: https://github.com/JuliaIO/ImageIO.jl/actions/runs/8783191936/job/24098831147?pr=69#step:4:497

[stemann]

I guess https://github.com/JuliaIO/ImageIO.jl/actions/runs/8783191936 for #69 ran due to dependabot yielding a push event and not just a pull_request event, so adding

on:
  pull_request:

to the CI/test workflow yaml is definitely needed.

[nhz2]

To fix the invalidations test, I think

ImageIO.jl/.github/workflows/InvalidationFlagger.yml

Line 10 in deb2972

version: 'nightly'

needs to be changed to version: '1'

[nhz2]

LGTM. Thank you for fixing this.