Unpin cliargs dependency

[alerque]

I haven't looked into why this was pinned in the first place yet, but whatever the reason I think we need to fix it at the source, not this way. This is making it hard to even test the cliargs module, much less release it.

[alerque]

This hard pinning of versions goes back all the way to 02f26cd and has no apparent rational there either.

[rautyrauty]

@alerque merge pls

[SlySven]

This is now a breaking issue as lua_cliargs has had a patch level revision:

stephen@Ripley:~/src/mudlet$ luarocks list --local  --outdated

Outdated rocks:
---------------

lua_cliargs
   3.0-2 < 3.0.2-1 at https://luarocks.org

stephen@Ripley:~/src/mudlet$ luarocks install --local lua_cliargs
Installing https://luarocks.org/lua_cliargs-3.0.2-1.src.rock

lua_cliargs 3.0.2-1 depends on lua >= 5.1 (5.1-1 provided by VM)
lua_cliargs 3.0.2-1 is now installed in /home/stephen/.luarocks (license: MIT)

Checking stability of dependencies in the absence of
lua_cliargs 3.0-2...

Will not remove lua_cliargs 3.0-2.
Removing it would break dependencies for: 
busted 2.2.0-1

Use --force to force removal (warning: this may break modules).

stephen@Ripley:~/src/mudlet$

[hishamhm]

This is now a breaking issue as lua_cliargs has had a patch level revision:

This was not an error message; it kept both versions 3.0-2 and 3.0.2-1 around in your system because of the pinned dependency.

Use --force to force removal (warning: this may break modules).

The warning was relative using to --force to remove the old one, in case that wasn't clear.

@alerque I have no idea why that was pinned. Should be safe to unpin.