Y24-385 - scRNA - update use of tube racks in sample manifest code

[andrewsparkes]

User story
As scRNA developers we need to check and update the code in the sample manifest upload to match the new concepts for tube rack instances and barcode metadata.

Who are the primary contacts for this story
PSD scRNA devs

Who is the nominated tester for UAT
Abby C

Acceptance criteria
To be considered successful the solution must allow:

• check and modify if needed file app/sample_manifest_excel/sample_manifest_excel/upload/processor/tube_rack.rb

Dependencies
This story is blocked by the following dependencies:
None

References
This story has a non-blocking relationship with:
Other tube rack stories e.g. y24-099

Additional context
It looks like it needs to create a new instance rather than re-use the previous one found by barcode.