chore(deps): update actions/upload-artifact action to v7 (#58)

Author: renovate[bot]

.github/workflows/publish.yml

@@ -22,7 +22,7 @@ jobs:
             - name: Build wasm
               run: just build
             - name: Upload
-              uses: actions/upload-artifact@v6
+              uses: actions/upload-artifact@v7
               with:
                   name: build
                   path: pkg

.github/workflows/test.yml

@@ -57,7 +57,7 @@ jobs:
             - run: npm pack
               working-directory: pkg
             - name: Upload
-              uses: actions/upload-artifact@v6
+              uses: actions/upload-artifact@v7
               with:
                   name: build
                   path: pkg