ci: scope down GitHub Token permissions (#85)

* ci: scope down permissions for release.yaml

* ci: scope down permissions for unit-tests.yaml

Author: AdnaneKhan

.github/workflows/release.yaml

@@ -5,6 +5,9 @@ on:
   push:
     branches:
       - master
+permissions:
+  contents: write
+
 jobs:
   release:
     name: Release Version

.github/workflows/unit-tests.yaml

@@ -10,6 +10,9 @@ on:
       - opened
       - edited
       - synchronize
+permissions:
+  contents: read
+
 jobs:
   unit_tests:
     name: Unit tests