Merge pull request #284 from Metaswitch/dependabot/github_actions/actions/upload-artifact-3

Bump actions/upload-artifact from 2 to 3

Author: Max Dymond

.github/workflows/ci.yml

@@ -48,7 +48,7 @@ jobs:
         env:
           OS_NAME: ${{ matrix.os }}
       - name: Archive artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         if: ${{ matrix.rust == 'stable' }}
         with:
           name: stableartifacts