Add option to attach plugin to lifecycle tasks

[rubensousa]

API:

projectGuard {
    options {
        lifecycleTask = LifecycleTask.ASSEMBLE // Or LifecycleTask.CHECK
    }
}

This will allow the plugin to run directly in the build process. Default is null to keep the existing behavior

Fixes: #74

[codecov]

Codecov Report

❌ Patch coverage is 93.75000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 83.21%. Comparing base (3a51b43) to head (3ff318d).
⚠️ Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
...ubensousa/projectguard/plugin/ProjectGuardScope.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #75      +/-   ##
==========================================
+ Coverage   82.99%   83.21%   +0.22%     
==========================================
  Files          42       45       +3     
  Lines         682      697      +15     
  Branches       52       52              
==========================================
+ Hits          566      580      +14     
- Misses         91       92       +1     
  Partials       25       25              

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