Fix HTTP 403 when creating GitHub releases by adding workflow-level permissions

Co-authored-by: samip5 <1703002+samip5@users.noreply.github.com>

.github/workflows/main.yml

@@ -4,6 +4,11 @@ on:
     workflow_dispatch:
     release:
      types: [published]
+
+permissions:
+    contents: read
+    packages: write
+
 jobs:
     build:
         runs-on: ubuntu-latest

.github/workflows/scheduled-build.yml

@@ -5,6 +5,10 @@ on:
         - cron: '0 2 * * 0'  # Every Sunday at 02:00 UTC
     workflow_dispatch:
 
+permissions:
+    contents: write
+    packages: write
+
 jobs:
     build:
         runs-on: ubuntu-latest