fix(firebolt-schema-builder): better fallback to projection type resolution

[ptiurin]

Description:

Previously a fresh setup of S3 source -> Firebolt sink would lead to an error by default due to the internal _meta/flow_truncated field's type not being resolved.
In this PR I'm trying to ensure we try to resolve the type via the projection whenever we're not able to do so with the explicit mapping from the Shape object.

Workflow steps:

Now setting up an S3 source and Firebolt sink should work by default.

Documentation links affected:

N/A

Notes for reviewers:

Added relevant tests to illustrate and test the issue.

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This change is 

[jgraettinger]

LGTM

Thanks! FYI, inner array types are being included in the Inference message by this PR, which AFAIK will remove the need for this connector to use schemalate / extract directly from the JSON schema. This is a fine stop-gap.

[ptiurin]

FYI, inner array types are being included in the Inference message by this PR, which AFAIK will remove the need for this connector to use schemalate / extract directly from the JSON schema. This is a fine stop-gap.

Thanks for the heads-up! It would be great to have this connector more in line with the others! Though I'd imagine it would take some effort to refactor out schemalate so I think merging this PR in the meantime would let us proceed faster.