21 memory management improvements

[matteogastaldello]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 54.12844% with 50 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
internal/helm/getter/getter.go	61.64%	20 Missing and 8 partials ⚠️
internal/helm/getter/oci.go	15.38%	11 Missing ⚠️
internal/handlers/resources/get/resources.go	38.46%	6 Missing and 2 partials ⚠️
internal/helm/getter/http.go	62.50%	2 Missing and 1 partial ⚠️

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