Update actions/upload-artifact action to v3 (#9670)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/cypress.yaml

@@ -147,7 +147,7 @@ jobs:
 
       - name: Upload Artifact
         if: failure()
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: cypress-results
           path: |

.github/workflows/element-web.yaml

@@ -46,7 +46,7 @@ jobs:
         working-directory: ./element-web
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: previewbuild
           path: element-web/webapp

.github/workflows/tests.yml

@@ -38,7 +38,7 @@ jobs:
         run: "yarn coverage --ci --reporters github-actions --max-workers ${{ steps.cpu-cores.outputs.count }}"
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: coverage
           path: |