Bump amundsenfrontendlibrary from `603144d4` to `51b6c5f5` (#378)

Bumps [amundsenfrontendlibrary](https://github.com/lyft/amundsenfrontendlibrary) from `603144d4` to `51b6c5f5`.
- [Release notes](https://github.com/lyft/amundsenfrontendlibrary/releases)
- [Commits](https://github.com/lyft/amundsenfrontendlibrary/compare/603144d40d1274658761c96fdf7228b6407205eb...51b6c5f5ac2c8a1105adc8c7a115d70edf27af46)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

amundsenfrontendlibrary @ 51b6c5f5

-Subproject commit 603144d40d1274658761c96fdf7228b6407205eb
+Subproject commit 51b6c5f5ac2c8a1105adc8c7a115d70edf27af46