Update GitHub Actions to use latest Ubuntu and checkout

ci: update runners and checkout version

Author: EndBug

.github/workflows/test.yml

@@ -7,16 +7,16 @@ on:
 jobs:
   build:
     name: Test build
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: npm i
       - run: npm run build
 
   lint:
     name: Check linting
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: npm i
       - run: npm run lint