chore: Update 'cran-comments.md'

cran-comments.md

@@ -1,13 +1,25 @@
 ## Test environments
 
+* local (linux, R 4.2.0)
 * github actions (windows, R release)
-* github actions (linux, R devel)
-* github actions (linux, R release)
-* local (linux, R 4.1.0)
-* rhub (macos, R release)
-* rhub (solaris, R release)
+* github actions (osx, R release)
 * win-builder (windows, R devel)
 
 ## R CMD check --as-cran results
 
-1 NOTE (has MIT LICENSE file)
+1 NOTE on 'oldrel':
+
+```
+create_gradient_as_geometry: no visible global function definition for
+ ‘linearGradient’
+create_gradient_as_geometry: no visible global function definition for
+ ‘radialGradient’
+Undefined global functions or variables:
+ linearGradient radialGradient 
+```
+
+The `linearGradient()` and `radialGradient()` functions are only available
+in the `{grid}` package bundled with R 4.1 and later.  
+This package checks the R version and if the R version is too old to support 
+these new functions it falls back to an alternative.
+Hence this package should not depend on R (>= 4.1).