chore: [Fix] Set explicit workflow permissions (#2478)

Author: davidkna-sap

.github/workflows/build_documentation.yml

@@ -4,9 +4,14 @@ on:
   pull_request:
     branches: [main]
 
+permissions: {}
+
 jobs:
   checks:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write # for reviewdog/vale
     steps:
       - name: Checkout
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

.github/workflows/release.yml

@@ -5,9 +5,13 @@ on:
     branches: [main]
   workflow_dispatch: 
 
+permissions: {}
+
 jobs:
   release:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0