Run tests in multiple Node versions

.github/workflows/run-tests.yml

@@ -1,11 +1,22 @@
-name: Run tests on PRs
+name: Run tests
 
 on:
   pull_request:
     types: [opened, synchronize]
 
 jobs:
-  lint:
+  run-tests:
+    name: Node ${{ matrix.node-version }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version:
+          # This is the version used by LeetCode.
+          - 20.10.0
+          - lts
+          - latest
+
     runs-on: ubuntu-latest
 
     steps:

.github/workflows/set-up-everything/action.yml

@@ -1,5 +1,10 @@
 name: Set Up Everything
 
+inputs:
+  node-version:
+    required: true
+    default: latest
+
 runs:
   using: composite
 
@@ -17,7 +22,7 @@ runs:
     - name: Set up Node
       uses: actions/setup-node@v4
       with:
-        node-version: 22
+        node-version: ${{ inputs.node-version }}
         cache: yarn
         cache-dependency-path: ./yarn.lock