bug: fix bucket validation in ratelimit_types.go #2844

Job	Run time
gitleaks	5s
Build manager image	2m 11s
Unit tests & lint / Check changed files	8s
Verify-commit-pins / Ensure SHA pinned actions	7s
Unit tests & lint / Run unit tests	4m 45s
Unit tests & lint / Golang lint check	1m 28s
Integration tests / Changed files	5s
Integration tests / Integration tests (test-integration-ory)	10m 27s
Integration tests / Integration tests (test-integration-istio)	9m 49s
Integration tests / Integration tests (test-integration-v2alpha1)	7m 22s
Integration tests / Integration tests (test-integration-gateway)	13m 28s
pull-request-status	1s
	49m 56s

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