cosmic-settings-daemon: Add GEOCLUE_AGENT to build environment

Add GEOCLUE_AGENT to the build environment, since it has a recommended
dependency on GEOCLUE_AGENT in the control file.

I originally tried setting the `geoclue_agent` through the makefile
options, since that seemed more correct. I am not quite sure why that
didn't work - even with a patched upstream makefile?

Eg.

```
makeFlags = [
    "prefix=$(out)"
    "geoclue_agent=${lib.getLib geoclue2-with-demo-agent}/libexec/geoclue-2.0/demos/agent"
    "CARGO_TARGET_DIR=target/${stdenv.hostPlatform.rust.cargoShortTarget}"
    ];
```

I expected this to work.

0 files changed, 0 insertions, 0 deletions