ci(pkgdown): fix paths that trigger workflow

Author: gadenbuie

.github/workflows/pkgdown.yaml

@@ -4,15 +4,15 @@ on:
   push:
     branches: [main, master]
     paths:
-      - 'pkg-r/man'
-      - 'pkg-r/vignettes'
-      - 'pkg-r/pkgdown'
+      - 'pkg-r/man/**/*'
+      - 'pkg-r/vignettes/**/*'
+      - 'pkg-r/pkgdown/**/*'
       - '.github/workflows/pkgdown.yaml'
   pull_request:
     paths:
-      - 'pkg-r/man'
-      - 'pkg-r/vignettes'
-      - 'pkg-r/pkgdown'
+      - 'pkg-r/man/**/*'
+      - 'pkg-r/vignettes/**/*'
+      - 'pkg-r/pkgdown/**/*'
       - '.github/workflows/pkgdown.yaml'
   release:
     types: [published]