docs: Add missing release notes for stackablectl #136

Job	Run time
General Pull Request Checks / Run Cargo Tests	2m 0s
General Pull Request Checks / Run Cargo Deny (bans licenses sources)	45s
General Pull Request Checks / Run Cargo Udeps	2m 44s
General Pull Request Checks / Run RustDoc	7m 21s
General Pull Request Checks / Run Cargo Deny (advisories)	50s
General Pull Request Checks / All tests passed	2s
	13m 42s

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