Update pre-commit config to detect _pkgdown.y[a]ml

[insights-engineering-bot]

Update pre-commit config so that spellcheck pre-commit hooks detect both flavors of pkgdown config files

[github-actions]

Code Coverage Summary

Filename                   Stmts    Miss  Cover    Missing
-----------------------  -------  ------  -------  ---------
R/g_ae_sub.R                 344     344  0.00%    150-539
R/g_butterfly.R              183     183  0.00%    106-324
R/g_events_term_id.R         262     262  0.00%    128-489
R/g_heat_bygrade.R           192     192  0.00%    139-349
R/g_hy_law.R                  77      77  0.00%    121-201
R/g_patient_profile.R        360     360  0.00%    302-934
R/g_spiderplot_simple.R       20      20  0.00%    36-58
R/g_spiderplot.R             176     176  0.00%    109-345
R/g_swimlane.R               144     144  0.00%    127-331
R/g_waterfall.R              303     303  0.00%    144-500
R/stream_filter.R            126     126  0.00%    35-302
R/utils.R                    153     153  0.00%    35-369
TOTAL                       2340    2340  0.00%

Results for commit: 942bb73

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results