Ignore installation error of quantreg on R <4.3 (#5889)

Author: yutannihilation

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

@@ -64,7 +64,7 @@ jobs:
           extra-packages: >
             any::rcmdcheck,
             Hmisc=?ignore-before-r=4.1.0,
-            quantreg=?ignore-before-r=3.6.0,
+            quantreg=?ignore-before-r=4.3.0,
           needs: check
 
       - uses: r-lib/actions/check-r-package@v2