feat: add ability to purge cdn for whole buckets, tenant, and transformations

[itslenny]

What kind of change does this PR introduce?

Feature

What is the current behavior?

The CDN can only be purged for individual objects using the full object path.

There is no way to specifically purge transformations

What is the new behavior?

CDN can be purged for individual objects or all objects in an entire bucket or entire tenant.

Also, supports purging just the transformations at all three levels.

Endpoints

• DELETE /storage/v1/cdn/bucket-name/path/to/an/object.ext - Existing purge endpoint, purges single cached object
• DELETE /storage/v1/cdn/bucket-name/path/to/an/object.ext?transformations=true - Purge all cached transformations for a single object
• DELETE /storage/v1/cdn/bucket-name - Purge all cached objects in specified bucket
• DELETE /storage/v1/cdn/bucket-name?transformations=true - Purge all cached transformations associated with objects in specified bucket
• DELETE /storage/v1/cdn - Purge all cached objects for this tenant
• DELETE /storage/v1/cdn?transformations=true - Purge all cached transformations for this tenant

Additional context

Requires deploy of updated CDN cache manager worker

[coveralls]

Coverage Report for CI Build 27632369399

Coverage increased (+0.06%) to 78.383%

Details

• Coverage increased (+0.06%) from the base build.
• Patch coverage: 18 of 18 lines across 2 files are fully covered (100%).
• No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.

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Coverage Stats

Relevant Lines:	11898
Covered Lines:	9782
Line Coverage:	82.22%
Relevant Branches:	6823
Covered Branches:	4892
Branch Coverage:	71.7%
Branches in Coverage %:	Yes
Coverage Strength:	432.76 hits per line

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💛 - Coveralls

[ferhatelmas]

Acceptance CDN stub is ignoring body shape at the moment. It didn't matter much previously since there was one shape but we might want to add validation. It also creates some coupling with another implementation and we already do in integration tests so feel free to ignore