Add GitHub Actions permissions for release creation

- Add contents: write and packages: write permissions
- Required for GitHub CLI release creation to work properly

Author: jaschadub

.github/workflows/release-combined.yml

@@ -31,6 +31,10 @@ on:
         type: boolean
         default: false
 
+permissions:
+  contents: write
+  packages: write
+
 jobs:
   validate:
     runs-on: ubuntu-latest

.github/workflows/release-npm.yml

@@ -16,6 +16,10 @@ on:
         type: boolean
         default: false
 
+permissions:
+  contents: write
+  packages: write
+
 jobs:
   release-npm:
     runs-on: ubuntu-latest