fix: changed dql routes format to show dict for service

[Prashansa-K]

Summary

While creating a degraphql-route using deck, we were specifying
service field as a string. This is different than how deck usually
handles references. So, inorder to comply with the current deck
format, we are changing the service reference to a dict.

Full changelog

• fix: changed dql routes format to show dict for service.
• tests: fixed test files based on new dql-routes format.
• fix: added validations to ensure correct format for configs is passed.
• tests: added tests to handle for required fields/format.

Issues resolved

Pre-req for Kong/deck#1505

Testing

• Unit tests
• E2E tests
• Manual testing on Universal
• Manual testing on Kubernetes

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 32.69231% with 35 lines in your changes missing coverage. Please review.

Project coverage is 28.17%. Comparing base (2eaa1ed) to head (ca3ddae).

Files with missing lines	Patch %	Lines
pkg/file/types.go	0.00%	32 Missing ⚠️
pkg/file/builder.go	85.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #187      +/-   ##
==========================================
+ Coverage   28.15%   28.17%   +0.02%     
==========================================
  Files         109      109              
  Lines       17190    17227      +37     
==========================================
+ Hits         4839     4854      +15     
- Misses      11830    11852      +22     
  Partials      521      521              

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[Prashansa-K]

Before this change, the yaml format for custom_entities was as such:

custom_entities:
  - type: degraphql_routes
    fields:
      uri: "/foo"
      query: "query{ foo { bar } }"
      service: svc1

After this change, the format is as such:

custom_entities:
  - type: degraphql_routes
    fields:
      uri: "/foo"
      query: "query{ foo { bar } }"
      service:
        name: svc1

[Prashansa-K]

deck gateway dump would render the following:

custom_entities:
- fields:
    methods:
    - GET
    query: query{ foo { bar } }
    service:
      id: 870a8b7e-4885-4fcc-95d2-4d3dc75f1fe6
      name: svc1
    uri: /foo
  id: a6c032f6-4e8f-4dae-a351-5f1b6261b358
  type: degraphql_routes

[harshadixit12]

@Prashansa-K this test is repeated? 👀

[Prashansa-K]

My bad! I will clean this up.