update CI to Deno 2.x

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: v1rtl

.github/workflows/main.yml

@@ -12,15 +12,15 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: denoland/setup-deno@v1
+      - uses: actions/checkout@v4
+      - uses: denoland/setup-deno@v2
         with:
-          deno-version: v1.x
+          deno-version: v2.x
       - name: Run tests
         run: deno task test
       - name: Create coverage report
         run: deno task cov
       - name: Collect coverage
-        uses: codecov/codecov-action@v1.5.0
+        uses: codecov/codecov-action@v4
         with:
           file: ./coverage.lcov