Fix GitHub Actions permissions for add-on publishing

- Add packages:write permission to build job
- Add contents:write permission to update-repository job
- Bump version to 1.0.1

.github/workflows/addon.yml

@@ -26,6 +26,9 @@ jobs:
   build:
     name: Build Add-on
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
     strategy:
       matrix:
         arch: [aarch64, amd64, armv7]
@@ -108,6 +111,8 @@ jobs:
     needs: build
     if: github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/')
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4