build: bump mmcif from 0.88.0 to 0.89.0 (#128)

Bumps [mmcif](https://github.com/rcsb/py-mmcif) from 0.88.0 to 0.89.0.
- [Changelog](https://github.com/rcsb/py-mmcif/blob/master/HISTORY.txt)
- [Commits](https://github.com/rcsb/py-mmcif/commits)

---
updated-dependencies:
- dependency-name: mmcif
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -1,4 +1,4 @@
-mmcif==0.88.0
+mmcif==0.89.0
 numpy==1.26.4
 orjson==3.10.6
 rnapolis==0.3.17