Merge pull request #92 from input-output-hk/dependabot/github_actions/actions/upload-artifact-4

[CI] Bump actions/upload-artifact from 3 to 4

Author: jorisdral

.github/workflows/documentation.yml

@@ -71,7 +71,7 @@ jobs:
         tar vzcf haddocks.tgz ./docs/haddocks
 
     - name: Upload haddocks as an artifact
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: haddocks
         path: haddocks.tgz