ci.yml fix

Author: MrRefactoring

.github/workflows/ci.yaml

@@ -1,16 +1,13 @@
 name: ci
 on: push
 
-env:
-  NODE_VERSIONS: [16.x, 18.x]
-
 jobs:
   build:
     name: Build
     runs-on: self-hosted
     strategy:
       matrix:
-        node-version: ${{ env.NODE_VERSIONS }}
+        node-version: [16.x, 18.x]
     steps:
       - name: Checkout sources
         uses: actions/checkout@v2
@@ -29,7 +26,7 @@ jobs:
     runs-on: self-hosted
     strategy:
       matrix:
-        node-version: ${{ env.NODE_VERSIONS }}
+        node-version: [16.x, 18.x]
     steps:
       - name: Linting
         run: npm run lint
@@ -42,7 +39,7 @@ jobs:
     runs-on: self-hosted
     strategy:
       matrix:
-        node-version: ${{ env.NODE_VERSIONS }}
+        node-version: [16.x, 18.x]
     steps:
       - name: Running unit tests
         run: npm run test:unit
@@ -54,7 +51,7 @@ jobs:
     strategy:
       max-parallel: 1
       matrix:
-        node-version: ${{ env.NODE_VERSIONS }}
+        node-version: [16.x, 18.x]
     steps:
       - name: Creating `.env` file
         run: |