chore: add release body for nightly workflow

.github/workflows/release-nightly-ota.yml

@@ -19,6 +19,9 @@ on:
       tag_name:
         description: 'Tag name to release'
         required: false
+      release_body:
+        type: string
+        required: false
 
 jobs:
   build-win-nightly:
@@ -146,6 +149,7 @@ jobs:
           tag: ${{ env.release_tag }}
           prerelease: true
           overwrite: true
+          body: ${{ inputs.release_body || '' }}
       - name: "Upload to server"
         uses: appleboy/scp-action@master
         with: