ci: bump node version

Author: PhearZero

.github/workflows/CI.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [ 18.x, 20.x ]
+        node-version: [ 20.x, 22.x ]
     steps:
       - name: Install algokit
         run: pipx install algokit