Pin Hyrax version for chunk upload fix

This approach keeps the submodule’s Hyku version pinned to 315925a4 (the version currently deployed to production) while still incorporating the chunk upload fix by specifying the Hyrax version in bundler.d/example.

Author: ShanaLMoore

bundler.d/example.rb

@@ -9,3 +9,7 @@
 ensure_gem "sentry-ruby"
 ensure_gem "sentry-rails"
 ensure_gem "cancancan", "~> 3.0" # cancancan is bundling to v1.17.0 but we need at least 3.0
+
+override_gem "hyrax",
+             github: "samvera/hyrax",
+             ref: "d6330a1c048bd498da852325a502f8dba0467c11"