Change build logic so we run on PR and run examples

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

@@ -1,6 +1,6 @@
 # For help debugging build failures open an issue on the RStudio community with the 'github-actions' tag.
 # https://community.rstudio.com/new-topic?category=Package%20development&tags=github-actions
-on: [push]
+on: [push, pull_request]
 
 name: R-CMD-check
 
@@ -75,14 +75,14 @@ jobs:
           rcmdcheck::rcmdcheck(args = c("--no-manual", "--as-cran"), error_on = "warning", check_dir = "check")
         shell: Rscript {0}
 
-      # - name: Run examples
-      #   env:
-      #     _R_CHECK_CRAN_INCOMING_REMOTE_: false
-      #   run: |
-      #     options(crayon.enabled = TRUE)
-      #     remotes::install_cran("devtools")
-      #     devtools::run_examples(run_dontrun = TRUE)
-      #   shell: Rscript {0}
+      - name: Run examples
+        env:
+          _R_CHECK_CRAN_INCOMING_REMOTE_: false
+        run: |
+          options(crayon.enabled = TRUE)
+          remotes::install_cran("devtools")
+          devtools::run_examples(run_dontrun = TRUE)
+        shell: Rscript {0}
 
       - name: Upload check results
         if: failure()