build: bump core from 027136c to a467ea8 in the submodules group

Bumps the submodules group with 1 update: [core](https://github.com/tree-sitter/tree-sitter).


Updates `core` from `027136c` to `a467ea8`
- [Release notes](https://github.com/tree-sitter/tree-sitter/releases)
- [Commits](tree-sitter/tree-sitter@027136c...a467ea8)

---
updated-dependencies:
- dependency-name: core
  dependency-version: a467ea8502d95562171f97953a6dc5b2a8622609
  dependency-type: direct:production
  dependency-group: submodules
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]