Update upload-artifact action to v4

Author: richsalz

.github/workflows/archive.yml

@@ -37,6 +37,6 @@ jobs:
         token: ${{ github.token }}
 
     - name: "Save Archive"
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         path: archive.json

.github/workflows/ghpages.yml

@@ -51,7 +51,7 @@ jobs:
         token: ${{ github.token }}
 
     - name: "Archive Built Drafts"
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         path: |
           draft-*.html

.github/workflows/publish.yml

@@ -50,6 +50,6 @@ jobs:
         make: upload "UPLOAD_EMAIL=${{ inputs.email }}"
 
     - name: "Archive Submitted Drafts"
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         path: "versioned/draft-*-[0-9][0-9].*"