update GHA

Author: Pakillo

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

@@ -5,6 +5,7 @@ on:
     branches: [main, master]
   pull_request:
     branches: [main, master]
+  workflow_dispatch:
 
 name: R-CMD-check
 
@@ -30,7 +31,7 @@ jobs:
       R_KEEP_PKG_SOURCE: yes
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: r-lib/actions/setup-pandoc@v2