[ADF-5165] [Regression] Fix Checkbok widget in completed tasks

[davidcanonieto]

Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x")

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation
• Other... Please describe:

What is the current behaviour? (You can also link to an open issue here)
https://issues.alfresco.com/jira/browse/ADF-5165
Checkbox widgets were all checked when the task was completed.

What is the new behaviour?
It happened because the widget type changes from boolean to readonly. It's been fixed to represent the real value.

Does this PR introduce a breaking change? (check one with "x")

• Yes
• No

If this PR contains a breaking change, please describe the impact and migration path for existing applications: ...

Other information:

[codecov-commenter]

Codecov Report

Merging #5979 into develop will increase coverage by 0.27%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop    #5979      +/-   ##
===========================================
+ Coverage    76.41%   76.69%   +0.27%     
===========================================
  Files          845      836       -9     
  Lines        18723    18465     -258     
  Branches      3697     3630      -67     
===========================================
- Hits         14308    14161     -147     
+ Misses        3299     3199     -100     
+ Partials      1116     1105      -11     

Impacted Files	Coverage Δ
...e/form/components/widgets/core/form-field.model.ts	89.26% <100.00%> (+0.05%)	⬆️
.../lib/task-list/components/attach-form.component.ts	43.58% <0.00%> (-7.70%)	⬇️
lib/core/services/upload.service.ts	84.39% <0.00%> (-4.05%)	⬇️
...ib/document-list/services/document-list.service.ts	74.50% <0.00%> (-1.97%)	⬇️
lib/extensions/src/lib/config/extension-utils.ts
...sions/src/lib/services/extension-loader.service.ts
lib/extensions/src/lib/services/rule.service.ts
...ons/src/lib/services/component-register.service.ts
...b/extensions/src/lib/evaluators/core.evaluators.ts
.../components/dynamic-component/dynamic.component.ts
... and 4 more

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