allow creating packages on a release

Author: Josh Ault

.github/workflows/build.yml

@@ -5,6 +5,7 @@ on:
     branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
+  workflow_dispatch:
 
 jobs:
   build:

.github/workflows/release.yml

@@ -7,6 +7,9 @@ on:
 jobs:
   release:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
     steps:
     - uses: actions/checkout@v4