Update renderbook.yml

Scrubbed code and updated action versions throughout.

.github/workflows/renderbook.yml

@@ -13,15 +13,15 @@ jobs:
     name: Render-Book
     runs-on: macOS-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           ref: gh-pages
       - uses: r-lib/actions/setup-r@v2
-      - uses: r-lib/actions/setup-pandoc@v1
+      - uses: r-lib/actions/setup-pandoc@v2
       - name: Install rmarkdown
         run: Rscript -e 'install.packages(c("rmarkdown","bookdown","HelpersMG","readr"))'
 
-      - uses: r-lib/actions/setup-tinytex@v1
+      - uses: r-lib/actions/setup-tinytex@v2
       - name : install tinytex
         run: tlmgr --version
 
@@ -39,7 +39,7 @@ jobs:
    needs: bookdown
    steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v2 # If you're using actions/checkout@v2 you must set persist-credentials to false in most cases for the deployment to work correctly.
+        uses: actions/checkout@v3 # If you're using actions/checkout@v2 you must set persist-credentials to false in most cases for the deployment to work correctly.
         with:
           persist-credentials: false