Readd R XGBoost test on Windows

[conda-forge-admin]

Now that the XGBoost R test has been rewritten as part of the XGBoost 3 upgrade. Try re-enabling it on Windows to see if the flaky test issues have been resolved

Closes #205

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found it was in an excellent condition.

I do have some suggestions for making it better though...

For recipe/meta.yaml:

• ℹ️ py-xgboost output has some malformed specs:

• In section host: `libxgboost ==cpu_h_PKG_BUILDNUM
• In section run: `libxgboost ==cpu_h_PKG_BUILDNUM
  xgboost output has some malformed specs:
• In section host: `py-xgboost ==cpu_pyh_PKG_BUILDNUM
• In section run: `py-xgboost ==cpu_pyh_PKG_BUILDNUM
  r-xgboost output has some malformed specs:
• In section host: `libxgboost ==cpu_h_PKG_BUILDNUM
• In section run: libxgboost =*=cpu_h*_PKG_BUILDNUM Requirement spec fields should match the syntax name [version [build]]to avoid known issues in conda-build. For example, instead of name =version=build, use name version.* build. There should be no spaces between version operators and versions either: python >= 3.8should bepython >=3.8`.

_{This message was generated by GitHub Actions workflow run https://github.com/conda-forge/conda-forge-webservices/actions/runs/14414808064. Examine the logs at this URL for more detail.}

[trivialfis]

Thank you for working on this. I was wondering why Windows is skipped when looking into the rapids fork.

Inspecting the log, I can't see the reason for the failure. Will try to reproduce.

Note:
log: https://dev.azure.com/conda-forge/feedstock-builds/_build/results?buildId=1223290&view=logs&j=f4756218-2105-5c4f-5cb9-a0ac2817b29f&t=618de3fb-810d-5a79-16ac-89d47be0c182&l=5103

[jakirkham]

Tried restarting CI and we can see the failure in this Windows CI job (also attached log for posterity)

Have included a snippet of the failure below:

 $ data :Formal class 'dgCMatrix' [package "Matrix"] with 6 slots
  .. ..@ i       : int [1:143286] 2 6 8 11 18 20 21 24 28 32 ...
  .. ..@ p       : int [1:127] 0 369 372 3306 5845 6489 6513 8380 8384 10991 ...
  .. ..@ Dim     : int [1:2] 6513 126
  .. ..@ Dimnames:List of 2
  .. .. ..$ : NULL
  .. .. ..$ : chr [1:126] "cap-shape=bell" "cap-shape=conical" "cap-shape=convex" "cap-shape=flat" ...
  .. ..@ x       : num [1:143286] 1 1 1 1 1 1 1 1 1 1 ...
  .. ..@ factors : list()
 $ label: num [1:6513] 1 0 0 1 0 0 0 1 0 0 ...
[1] 6513  126
[1] 1611  126
[1] "dgCMatrix"
[1] "numeric"
[1] 1611
[1] 0.2852080 0.9240534 0.2852080 0.2852080 0.0516128 0.9240534
[1] 0 1 0 0 0 1
[1] "test-error= 0.0217256362507759"
[1]	train-logloss:0.233156	test-logloss:0.226460 
[2]	train-logloss:0.136542	test-logloss:0.137763 
[1] 1611
[1] 0.2852080 0.9240534 0.2852080 0.2852080 0.0516128 0.9240534
[1] 0 1 0 0 0 1
[1] "test-error= 0.0217256362507759"

[trivialfis]

I can reproduce the error log on Windows, but haven't figured out what is failing. @hcho3 shared that he would like to take a look when time allows.