onclick v1.0.3

This is another minor update to the build system.

onclick runs a command every time the terminal is clicked.

More information about the project can be found at
<https://sr.ht/~smlavine/onclick>.

Subscribe to the announcement list by sending an email to
<~smlavine/onclick-announce+subscribe@lists.sr.ht>.

master$ git shortlog 1.0.2..
        Fix install target