feat: sync repository content with datastore

[LucasMrqes]

This implements the first step to implement repository polling

• New git provider features: fetch the latest revision (commit sha) for a ref, download a git bundle for a specific revision
• New datastore routes: get latest revision, put git bundle
• Implement TerraformRepository states and conditions in its controller (SyncNeeded, Synced). A sync consists of downloading git bundles for the latest revision of all refs managed by burrito (branch names or tag names of all associated TerraformLayers) and pushing them to the datastore

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 7.32648% with 721 lines in your changes missing coverage. Please review.

Project coverage is 44.48%. Comparing base (b44c05f) to head (fff66c4).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/controllers/terraformrepository/states.go	0.00%	138 Missing ⚠️
...rnal/controllers/terraformrepository/conditions.go	0.00%	97 Missing ⚠️
internal/utils/gitprovider/github/github.go	0.00%	92 Missing ⚠️
internal/utils/gitprovider/standard/standard.go	9.09%	77 Missing and 3 partials ⚠️
internal/utils/gitprovider/gitlab/gitlab.go	0.00%	70 Missing ⚠️
internal/datastore/client/client.go	0.00%	58 Missing ⚠️
internal/utils/zip/bundle.go	0.00%	51 Missing ⚠️
...rnal/controllers/terraformrepository/controller.go	0.00%	48 Missing ⚠️
...nternal/controllers/terraformrepository/polling.go	0.00%	33 Missing ⚠️
internal/datastore/client/mock.go	19.04%	17 Missing ⚠️
... and 6 more

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #467      +/-   ##
==========================================
- Coverage   50.05%   44.48%   -5.57%     
==========================================
  Files          72       78       +6     
  Lines        4805     5516     +711     
==========================================
+ Hits         2405     2454      +49     
- Misses       2197     2853     +656     
- Partials      203      209       +6     

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