Add order_project_path to package graphql API sort

🔬 What does this MR do?

This MR adds two additional sort options for the package GraphQL API:

PROJECT_PATH_DESC
PROJECT_PATH_ASC

🐘 Database

The new query was reviewed when the scopes were updated here, so no further review should be necessary.

For reference, here is a query using the new sort options and an explain plan: https://explain.depesz.com/s/7wBT

📷 Screenshots (strongly suggested)

PROJECT_PATH_DESC graphql query

PROJECT_PATH_ASC graphql query

Does this MR meet the acceptance criteria?

☑ Conformity

• I have included a changelog entry, or it's not needed. (Does this MR need a changelog?)
• I have added/updated documentation, or it's not needed. (Is documentation required?)
• [-] I have properly separated EE content from FOSS, or this MR is FOSS only. (Where should EE code go?)
• I have added information for database reviewers in the MR description, or it's not needed. (Does this MR have database related changes?)
• I have self-reviewed this MR per code review guidelines.
• This MR does not harm performance, or I have asked a reviewer to help assess the performance impact. (Merge request performance guidelines)
• I have followed the style guides.

Availability and Testing

• I have added/updated tests following the Testing Guide, or it's not needed. (Consider all test levels. See the Test Planning Process.)
• [-] I have tested this MR in all supported browsers, or it's not needed.
• [-] I have informed the Infrastructure department of a default or new setting change per definition of done, or it's not needed.

Related to #328212 (closed)