Fix CI failures on oldrel-4 (i.e. R 3.5) (#5068)

* Ignore installation failures of quantreg on R 3.5

* Skip tests using warnPartialMatchArgs=FALSE on R 3.5

Author: yutannihilation

.github/workflows/R-CMD-check.yaml

@@ -62,11 +62,8 @@ jobs:
           cache-version: 2
           extra-packages: >
             any::rcmdcheck,
-            maps=?ignore-before-r=3.5.0,
             Hmisc=?ignore-before-r=3.6.0,
-            mapproj=?ignore-before-r=3.5.0,
-            multcomp=?ignore-before-r=3.5.0,
-            quantreg=?ignore-before-r=3.5.0,
+            quantreg=?ignore-before-r=3.6.0,
           needs: check
 
       - uses: r-lib/actions/check-r-package@v2

tests/testthat/test-geom-quantile.R

@@ -1,4 +1,5 @@
 test_that("geom_quantile matches quantile regression", {
+  skip_if(packageVersion("base") < "3.6.0") # warnPartialMatchArgs didn't accept FALSE
   withr::local_options(
     warnPartialMatchArgs = FALSE,
     warnPartialMatchDollar = FALSE

tests/testthat/test-geom-smooth.R

@@ -22,6 +22,7 @@ test_that("geom_smooth works in both directions", {
 })
 
 test_that("default smoothing methods for small and large data sets work", {
+  skip_if(packageVersion("base") < "3.6.0") # warnPartialMatchArgs didn't accept FALSE
   withr::local_options(warnPartialMatchArgs = FALSE)
   # Numeric differences on the MLK machine on CRAN makes these test fail
   # on that particular machine