Publish a flake to flakestry.dev

Inputs

• url: defaults to https://flakestry.dev
• ref: a git reference — such as HEAD, refs/heads/main, or refs/tags/v1.0.0 —, or a full commit hash. Defaults to the hash of the commit that triggered this action.
• version: should be a semver. If not provided, it defaults to either the tag (if the given reference is a tag) or the UTC commit date otherwise, in the format v0.1.yyyymmddHHMMSS.
• ignoreConflicts: by default, if the version already exists this action will fail. Set this to true to silently ignore it instead. Note that this will not force an override of the version already present, just silence the error.