fix: FFI/cgo string passing #30

Job	Run time
Reviewdog Pull Request Checks / actionlint	16s
Reviewdog Pull Request Checks / eslint	35s
Reviewdog Pull Request Checks / markdownlint	16s
Reviewdog Pull Request Checks / flake8	11s
Reviewdog Pull Request Checks / shellcheck	8s
Reviewdog Pull Request Checks / yamllint	14s
General Pull Request Checks / Run Cargo Deny (advisories)	41s
General Pull Request Checks / Run Clippy	2m 7s
General Pull Request Checks / Run Cargo Deny (bans licenses sources)	51s
General Pull Request Checks / Run RustDoc	2m 50s
General Pull Request Checks / Run Rustfmt	18s
General Pull Request Checks / Run Cargo Tests	2m 57s
General Pull Request Checks / Run Cargo Udeps	4m 44s
General Pull Request Checks / All tests passed	7s
Build stackablectl for x86_64-unknown-linux-gnu	1m 42s
Build stackablectl for x86_64-apple-darwin	4m 7s
Build stackablectl for aarch64-apple-darwin	3m 15s
	25m 19s

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