Merge pull request #59 from CESNET/renovate/actions-setup-node-2.x

chore(deps): update actions/setup-node action to v2

.github/workflows/build_and_check.yml

@@ -42,7 +42,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Setup Node.js
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: 14
       - name: Release