test: Add three new unit tests for Artifactory pipeline
test: Add three new unit tests for Artifactory pipeline

Three new unit tests added:
- TestRunPipe_NoFile: Checks the error if the file for the
upload is not there
- TestRunPipe_UnparsableTarget: Checks that an error will
be thrown if the target is not parsable
- TestRunPipe_DirUpload: Checks that an error will be
thrown when we try to upload a directory

goreleaser/releaser,goreleaser/goreleaser,goreleaser/goreleaser,goreleaser/goreleaser