Fix indent in GH workflows

Merge in ADGUARD-FILTERS/vscode-adblock-syntax from fix-gh-workflows to master

Squashed commit of the following:

commit 0ba91ba
Author: scripthunter7 <d.tota@adguard.com>
Date:   Wed Jan 10 18:09:35 2024 +0100

    Fix indent

Author: totadavid95

.github/workflows/check.yml

@@ -40,7 +40,7 @@ jobs:
       - name: Run Jest tests
         run: yarn test
 
-notify:
+  notify:
     name: Send Slack notification
     needs:
       - check_code

.github/workflows/release.yml

@@ -61,7 +61,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-notify:
+  notify:
     name: Send Slack notification
     needs:
       - release