Separate build from dist targets

[alerque]

Somehow the make dist target thinks it needs to build the CLI binary. This shouldn't be necessary as only the sources are included in the dist, not the actual build. I'm unsure what the proper usage of automake is here so leaving this for later.

Note that CI jobs will probably need separating too.

Also currently make dist fails on the first run for any new commit. I'm guessing this is related and will go away when building the binary doesn't trip up the source builder, but in the event it does not that should subsequently be tracked in a new issue.