Update permissions

Author: jhutchings1

README.md

@@ -13,11 +13,15 @@ on:
   workflow_dispatch:
   push:
 
+permissions: 
+  id-token: write
+  contents: write
+
 jobs:
   dependency-submission:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - name: Conda dependency scanning
         uses: jhutchings1/conda-dependency-submission-action@v0.0.1
-```        
+```