Update workflows

Author: gkjohnson

.github/workflows/examples-build.yml

@@ -18,7 +18,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [24.x]
 
     steps:
     - uses: actions/checkout@v4

.github/workflows/node.js.yml

@@ -20,7 +20,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x, 20.x]
+        node-version: [24.x]
 
     steps:
     - uses: actions/checkout@v4