feature: Callable readonly

[rickychilcott]

Description

This adds support for making the readonly field take a proc, just like required (implemented in #955)

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works

With support from @ncsmith24

[qlty-cloud-legacy]

Code Climate has analyzed commit 0ee683a and detected 0 issues on this pull request.

View more on Code Climate.

[codecov]

Codecov Report

Base: 94.18% // Head: 94.27% // Increases project coverage by +0.08% 🎉

Coverage data is based on head (0ee683a) compared to base (fed8189).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1150      +/-   ##
==========================================
+ Coverage   94.18%   94.27%   +0.08%     
==========================================
  Files         530      549      +19     
  Lines       10560    10967     +407     
==========================================
+ Hits         9946    10339     +393     
- Misses        614      628      +14     

Impacted Files	Coverage Δ
...ents/avo/fields/belongs_to_field/edit_component.rb	100.00% <100.00%> (ø)
lib/avo/fields/base_field.rb	95.51% <100.00%> (+0.02%)	⬆️
lib/avo/fields/concerns/is_readonly.rb	100.00% <100.00%> (ø)
spec/dummy/app/avo/resources/fish_resource.rb	100.00% <100.00%> (ø)
spec/features/avo/readonly_takes_a_block_spec.rb	100.00% <100.00%> (ø)
spec/features/avo/required_takes_a_block_spec.rb	100.00% <100.00%> (ø)
...ec/dummy/app/controllers/avo/courses_controller.rb	78.94% <0.00%> (-21.06%)	⬇️
.../dummy/app/avo/resources/photo_comment_resource.rb	95.00% <0.00%> (-5.00%)	⬇️
app/controllers/avo/search_controller.rb	92.95% <0.00%> (-3.20%)	⬇️
app/controllers/avo/base_controller.rb	92.18% <0.00%> (-1.22%)	⬇️
... and 51 more

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[rickychilcott]

The failing test appears unrelated to me.

[adrianthedev]

This looks good too! Again, I'll do a manual check tmr! Thank you for your contribution!