Add explicit permissions to semver-checks workflow (#570)

* Add permissions declaration to semver-checks workflow

Co-authored-by: atuchin-m <45488748+atuchin-m@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: atuchin-m <45488748+atuchin-m@users.noreply.github.com>

Author: Copilot

.github/workflows/semver-checks.yml

@@ -6,6 +6,9 @@ on:
       - master
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   semver-checks:
     runs-on: ubuntu-latest