Fix copilot-setup-steps: replace reusable workflow with direct steps

[m7pr]

This PR fixes the GitHub Copilot setup workflow by replacing the reusable workflow call with direct steps, as required by GitHub Copilot's limitations for copilot-setup-steps jobs.

Changes:

• Removed uses: insightsengineering/r.pkg.template/.github/workflows/copilot-setup-steps.yaml@main
• Added direct steps for checkout, R setup, and dependency installation
• Uses actions with uses: (which is allowed) instead of reusable workflows (which are not)

This resolves the error: 'Calling a reusable workflow with the uses: keyword is not supported in copilot-setup-steps jobs.'

[github-actions]

Unit Tests Summary

  1 files   31 suites   41s ⏱️
409 tests 394 ✅ 15 💤 0 ❌
871 runs  856 ✅ 15 💤 0 ❌

Results for commit cbab4ad.

♻️ This comment has been updated with latest results.

[github-actions]

Unit Test Performance Difference

Test Suite	$Status$	Time on main	$±Time$	$±Tests$	$±Skipped$	$±Failures$	$±Errors$
FilteredData	💚	$24.93$	$-2.13$	$0$	$0$	$0$	$0$

Results for commit 212349b

♻️ This comment has been updated with latest results.

[github-actions]

Code Coverage Summary

Filename                        Stmts    Miss  Cover    Missing
----------------------------  -------  ------  -------  -------------------------------------------------------------------------------------------------------------------------
R/calls_combine_by.R                7       0  100.00%
R/choices_labeled.R                23       1  95.65%   34
R/count_labels.R                  126       0  100.00%
R/filter_panel_api.R               27       1  96.30%   132
R/FilteredData-utils.R             58      17  70.69%   38-43, 139, 161-170
R/FilteredData.R                  522     118  77.39%   109, 138, 186, 325, 397, 484-493, 514, 532-590, 610-613, 657, 712-728, 873, 885-905
R/FilteredDataset-utils.R          23       1  95.65%   125
R/FilteredDataset.R               264       5  98.11%   49, 154, 189, 214-215
R/FilteredDatasetDataframe.R      123       3  97.56%   87, 148, 158
R/FilteredDatasetDefault.R         18       4  77.78%   104-117
R/FilteredDatasetMAE.R            133      15  88.72%   56, 118-123, 160-165, 169-170
R/FilterPanelAPI.R                 10       0  100.00%
R/FilterState-utils.R             101       2  98.02%   264, 294
R/FilterState.R                   366      21  94.26%   91, 155, 266-267, 273-274, 328, 330, 416, 632, 675-679, 698, 762-768, 779
R/FilterStateChoices.R            349      10  97.13%   303, 426-429, 541-544, 589
R/FilterStateDate.R               221      46  79.19%   233, 361-371, 382-387, 391-396, 404-419, 438-445
R/FilterStateDatettime.R          316     206  34.81%   269, 321-559
R/FilterStateEmpty.R               53      31  41.51%   89, 99-104, 117, 129-169
R/FilterStateExpr.R                81       1  98.77%   244
R/FilterStateLogical.R            201     149  25.87%   139, 161, 221, 225-414
R/FilterStateRange.R              409     121  70.42%   265, 387, 498-505, 508-518, 521, 532-538, 549-561, 565-575, 579-581, 594-620, 635-642, 645-652, 666-683, 718-723, 733-735
R/FilterStates-utils.R             70       7  90.00%   108, 127, 188-194
R/FilterStates.R                  379      19  94.99%   63, 92-96, 208, 425, 470, 559-563, 608, 726-729
R/FilterStatesDF.R                  5       0  100.00%
R/FilterStatesMAE.R                10       1  90.00%   40
R/FilterStatesMatrix.R              7       0  100.00%
R/FilterStatesSE.R                171      47  72.51%   36, 73-75, 85-87, 119, 191-201, 213-223, 230-237, 245-252, 259
R/include_css_js.R                  5       0  100.00%
R/teal_slice.R                    108       1  99.07%   206
R/teal_slices.R                    85       5  94.12%   150-155
R/test_utils.R                     21       0  100.00%
R/utils.R                          29       0  100.00%
R/variable_types.R                 15       1  93.33%   48
R/zzz.R                            16      16  0.00%    3-46
TOTAL                            4352     849  80.49%

Diff against main

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

Results for commit: cbab4ad

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results