## Description of Changes
Instead of our CI failing and telling the user that a PR should be based
on `master`, we automatically change the base branch to `master`.
## API
No code changes.
## Requires SpacetimeDB PRs
None
## Testsuite
SpacetimeDB branch name: master
## Testing
- [x] See below, where the new CI changed the base branch of this PR!
- [x] On this test PR, the base branch was not changed:
https://github.com/clockworklabs/com.clockworklabs.spacetimedbsdk/pull/299
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Co-authored-by: Zeke Foppa <bfops@users.noreply.github.com>