build: Add node 20 to the test matrix.

.github/workflows/js-tests.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-20.04]
-        node-version: [18]
+        node-version: [18, 20]
         python-version:
           - "3.11"
 

.github/workflows/quality-checks.yml

@@ -16,7 +16,7 @@ jobs:
         os: [ubuntu-20.04]
         python-version:
           - "3.11"
-        node-version: [18]
+        node-version: [18, 20]
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/static-assets-check.yml

@@ -15,7 +15,7 @@ jobs:
         os: [ubuntu-20.04]
         python-version:
           - "3.11"
-        node-version: [18]
+        node-version: [18, 20]
         npm-version: [10.5.x]
         mongo-version:
           - "7.0"