Bump nglview from 3.1.2 to 3.1.4

Bumps [nglview](https://github.com/arose/nglview) from 3.1.2 to 3.1.4.
- [Release notes](https://github.com/arose/nglview/releases)
- [Changelog](https://github.com/nglviewer/nglview/blob/master/CHANGELOG.md)
- [Commits](nglviewer/nglview@v3.1.2...v3.1.4)

---
updated-dependencies:
- dependency-name: nglview
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -1,3 +1,3 @@
-nglview==3.1.2
+nglview==3.1.4
 pyiron==0.5.2
 pyiron_atomistics==0.6.17