prompt: update powerlevel10k submodule to v1.14.3

Release notes:

- https://github.com/romkatv/powerlevel10k/releases/tag/v1.14.0
- https://github.com/romkatv/powerlevel10k/releases/tag/v1.14.1
- https://github.com/romkatv/powerlevel10k/releases/tag/v1.14.2
- https://github.com/romkatv/powerlevel10k/releases/tag/v1.14.3

modules/prompt/external/powerlevel10k

@@ -1 +1 @@
-Subproject commit 47c842fe8e666e718c8ea805586fe30d0038c262
+Subproject commit ff79e502adf8eeec0fa775087f42d9679b10c5eb