More descriptive error messages when generation fails due to invalid query param type

[mpritham]

Before this PR

Deserialization of query parameters of type <container>[<container>[T]] are ambiguous. If we encounter an empty value over the wire, we're not able to disambiguate an empty collection from a missing value. We throw an error with the message "unknown type" which isn't as descriptive as it could be.

Additionally, we should throw an error earlier during Conjure definition validation defined in this class cc: @kunalrkak

After this PR

==COMMIT_MSG== More descriptive error messages when generation fails due to invalid query param types ==COMMIT_MSG==

Possible downsides?

[changelog-app[bot]]

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Type

• [ ] Feature
• [x] Improvement
• [ ] Fix
• [ ] Break
• [ ] Deprecation
• [ ] Manual task
• [ ] Migration

Description More descriptive error messages when generation fails due to invalid query param types

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