Bump libs/EXTERNAL/libezgl from 5b1fd68 to fb0e6f0

Bumps [libs/EXTERNAL/libezgl](https://github.com/verilog-to-routing/ezgl) from `5b1fd68` to `fb0e6f0`.
- [Release notes](https://github.com/verilog-to-routing/ezgl/releases)
- [Commits](verilog-to-routing/ezgl@5b1fd68...fb0e6f0)

---
updated-dependencies:
- dependency-name: libs/EXTERNAL/libezgl
  dependency-version: fb0e6f073967b34135112b7bccdea864925d7823
  dependency-type: direct:production
...

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

Author: dependabot[bot]