Update node-version in build.yml from 20 to 22 (#154)

I am upgrading Node across projects that our team contributes to. We
want the versions to be aligned so that developers can have consistent
behaviors across pipelines and their development machines.

See also:
ni/nimble#2364
https://dev.azure.com/ni/DevCentral/_git/Skyline/pullrequest/786732

.github/workflows/build.yml

@@ -27,7 +27,7 @@ jobs:
     # Install dependencies
     - uses: actions/setup-node@v4
       with:
-        node-version: '20'
+        node-version: '22'
         registry-url: 'https://registry.npmjs.org'
         cache: 'npm'
     - run: npm ci