build: bump core from dc4e5b5 to cd503e8 in the submodules group

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


Updates `core` from `dc4e5b5` to `cd503e8`
- [Release notes](https://github.com/tree-sitter/tree-sitter/releases)
- [Commits](tree-sitter/tree-sitter@dc4e5b5...cd503e8)

---
updated-dependencies:
- dependency-name: core
  dependency-version: cd503e803d3df187968f481c7a2e2b9e366cffbd
  dependency-type: direct:production
  dependency-group: submodules
...

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

Author: dependabot[bot]