ci: fix linter warnings #7

Job	Run time
get-available-images-matrix / get-available-images-matrix	4s
Continuous Integration / checks / Run checks	1m 10s
clean / prepare-variables	2s
clean / Prune pull requests image tags for ci-helm	4s
clean / Prune pull requests image tags for mydumper	3s
clean / Prune pull requests image tags for ci-helm/cache	21s
clean / Prune pull requests image tags for mydumper/cache	7s
Continuous Integration / get-available-images-matrix / get-available-images-matrix	3s
Continuous Integration / prepare-images-to-build (ci-helm)	6s
Continuous Integration / prepare-images-to-build (mydumper)	7s
Continuous Integration / get-images-to-build	6s
Continuous Integration / build-images / prepare-variables	2s
Continuous Integration / build-images / Build image ci-helm for linux/amd64	41s
Continuous Integration / build-images / Build image ci-helm for linux/arm64	28s
Continuous Integration / build-images / Build image mydumper for linux/amd64	36s
Continuous Integration / build-images / Build image mydumper for linux/arm64	2m 10s
Continuous Integration / build-images / Publish images manifests	36s
	6m 46s

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