add lookup-refs param to rhub workflow

[pawelru]

follow up on #64

[github-actions]

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[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            38       0  100.00%
R/tabulate_gee.R       54      19  64.81%   27, 34-54
TOTAL                 206      20  90.29%

Diff against main

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

Results for commit: e9b2802

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results

[github-actions]

Unit Tests Summary

 1 files   4 suites   3s ⏱️
23 tests 21 ✅ 2 💤 0 ❌
46 runs  43 ✅ 3 💤 0 ❌

Results for commit e9b2802.

♻️ This comment has been updated with latest results.

[pawelru]

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

[Melkiades]

Lgtm! Thanks Pawel