Update GitHub Actions workflows to use latest action versions for caching, artifact handling, and deployment

Author: sean-parent

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
 
       # Cache Rust toolchain and cargo registry
       - name: Cache Rust
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/bin/
@@ -46,7 +46,7 @@ jobs:
         run: mdbook build ./better-code
 
       - name: Upload build artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: mdbook-build-ubuntu-latest
           path: ./better-code/book

.github/workflows/deploy.yml

@@ -33,20 +33,20 @@ jobs:
       id-token: write
     steps:
       - name: Download build artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: mdbook-build-ubuntu-latest
           path: ./book
 
       - name: Setup Pages
         id: pages
-        uses: actions/configure-pages@v5
+        uses: actions/configure-pages@v6
 
       - name: Upload Pages artifact
-        uses: actions/upload-pages-artifact@v4
+        uses: actions/upload-pages-artifact@v5
         with:
           path: ./book
 
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v5