Adapt release action for trusted publishing

Author: tklepzig

.github/workflows/publish-switch.yml

@@ -25,3 +25,4 @@ jobs:
     secrets: inherit
     permissions:
       id-token: write
+      contents: write

.github/workflows/release.yml

@@ -11,6 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       id-token: write
+      contents: write
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v4