chore: Bump amundsenmetadatalibrary from `6a81b97` to `84280b7` (#750)

Bumps [amundsenmetadatalibrary](https://github.com/amundsen-io/amundsenmetadatalibrary) from `6a81b97` to `84280b7`.
- [Release notes](https://github.com/amundsen-io/amundsenmetadatalibrary/releases)
- [Commits](https://github.com/amundsen-io/amundsenmetadatalibrary/compare/6a81b974f2715429748f86bdb3459b1c91dfedfb...84280b7dfc0f02873c6bbbafef6767bd84a72d5a)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

amundsenmetadatalibrary @ 84280b7d

-Subproject commit 6a81b974f2715429748f86bdb3459b1c91dfedfb
+Subproject commit 84280b7dfc0f02873c6bbbafef6767bd84a72d5a