temporarily remove nodejs 20 from test/publish blocking (#410)

Author: annajowang

.github/workflows/test.yml

@@ -56,7 +56,7 @@ jobs:
     needs: build
     strategy:
       matrix:
-        node: [18, 20, 22]
+        node: [18, 22]
       fail-fast: false
     name: Test Node ${{ matrix.node }}
     steps: