ci: run browser tests on Node.js 22

Author: pichlermarc

.github/workflows/unit-test.yml

@@ -182,7 +182,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: ["16"]
+        node: ["22"]
     runs-on: ubuntu-latest
     env:
       NPM_CONFIG_UNSAFE_PERM: true