chore: update Node.js in CI

Author: Belco90

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ on:
   merge_group:
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: '${{ github.workflow }}-${{ github.ref }}'
   cancel-in-progress: true
 
 jobs:

.github/workflows/verifications.yml

@@ -33,8 +33,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # The .x indicates "the most recent one"
-        node: [19.x, 18.x, 17.x, 16.x, 14.x, 14.17.0, 12.x, 12.22.0]
+        node: [18.18, 20.9, 21.1]
         eslint: [7.5, 7, 8]
     steps:
       - name: Checkout