Update Grapl logo. (#14267)
Update Grapl logo. (#14267)

Per https://github.com/pantsbuild/pants/issues/14265

[ci skip-rust]

[ci skip-build-wheels]
benjyw/pants,benjyw/pants,pantsbuild/pants,benjyw/pants,benjyw/pants,benjyw/pants,benjyw/pants,pantsbuild/pants,benjyw/pants,pantsbuild/pants,pantsbuild/pants,pantsbuild/pants,pantsbuild/pants,pantsbuild/pants