chore: give publish-to-github required permissions (#1285)

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> [!IMPORTANT]
> Add `contents: write` permission to `publish-to-github` job in
`release.yml`.
> 
>   - **Permissions**:
> - Add `contents: write` permission to `publish-to-github` job in
`release.yml` to allow modifying repository contents.
> 
> <sup>This description was created by </sup>[<img alt="Ellipsis"
src="https://img.shields.io/badge/Ellipsis-blue?color=175173">](https://www.ellipsis.dev?ref=BoundaryML%2Fbaml&utm_source=github&utm_medium=referral)<sup>
for b409e07. It will automatically
update as commits are pushed.</sup>

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.github/workflows/release.yml

@@ -167,6 +167,8 @@ jobs:
 
   publish-to-github:
     environment: release
+    permissions:
+      contents: write
     needs: [all-builds]
     if: ${{ startsWith(github.ref, 'refs/tags/') }}
     runs-on: ubuntu-latest