fix(deps): update module github.com/crossplane/function-sdk-go to v0.5.0, crossplane-runtime to v2#8

ytsarev merged 2 commits intomainupbound/function-rds-metrics:mainfrom

renovate/github.com-crossplane-function-sdk-go-0.xupbound/function-rds-metrics:renovate/github.com-crossplane-function-sdk-go-0.xCopy head branch name to clipboard