Remove lookup-refs

[m7pr]

Part of https://github.com/insightsengineering/coredev-tasks/issues/609

From now on, we will provide development dependencies in

Remotes: repo/project@branch

format, so it's explicitly visible in the DESCRIPTION file and can be handled by pak::install, renv::install and remotes::install.

With development dependencies specified in CJ Pipelines configuration, this connection was hidden, and it was hard to install the package from the main branch (or any other branch) locally from user's machine.

[github-actions]

✅ All contributors have signed the CLA
_{Posted by the CLA Assistant Lite bot.}

[m7pr]

I have read the CLA Document and I hereby sign the CLA

[m7pr]

recheck

[github-actions]

Code Coverage Summary

Filename            Stmts    Miss  Cover    Missing
----------------  -------  ------  -------  ---------
R/fit_gee.R            90       0  100.00%
R/gee_methods.R        24       1  95.83%   54
R/lsmeans.R            37       0  100.00%
R/tabulate_gee.R       54      19  64.81%   27, 34-54
TOTAL                 205      20  90.24%

Diff against main

Filename      Stmts    Miss  Cover
----------  -------  ------  --------
TOTAL             0       0  +100.00%

Results for commit: db8dacb

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results

[github-actions]

Unit Tests Summary

 1 files   4 suites   2s ⏱️
23 tests 23 ✅ 0 💤 0 ❌
46 runs  46 ✅ 0 💤 0 ❌

Results for commit db8dacb.

♻️ This comment has been updated with latest results.

[llrs-roche]

Packages published and the latest version published is required: No need for remotes ✅