🤖 config(ci): Upgrade artifact actions to v4.

These changes were automatically generated by a transform whose code can be found at:
  - https://github.com/make-github-pseudonymous-again/rejuvenate/blob/31b7e48f29789fa2e2ad9e16013ff277c3bbca57/src/transforms/ci:upgrade-artifact-actions-to-v4.js
Please contact the author of the transform if you believe there was an error.

Author: a-flying-potato

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
         run: yarn build
 
       - name: Archive build 💽
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: dist
           path: dist
@@ -49,7 +49,7 @@ jobs:
           useRollingCache: true
 
       - name: Load build 💽
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: dist
           path: dist