Bump gui-v2 from b15b32a to cb5ecb8

Bumps [gui-v2](https://github.com/OpenEVSE/openevse-gui-v2) from `b15b32a` to `cb5ecb8`.
- [Commits](OpenEVSE/openevse-gui-v2@b15b32a...cb5ecb8)

---
updated-dependencies:
- dependency-name: gui-v2
  dependency-version: cb5ecb8fdcde6e7170c8b3bc686ee5020576c562
  dependency-type: direct:production
...

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

Author: dependabot[bot]