[V2] Dataproxy check project exists

[machichima]

Tracking issue

Why are the changes needed?

Currently, when doing flyte run or flyte deploy with project that does not exists, we can successfully execute the runs and deploy tasks, but we can never see it on the UI as the project does not exists. We should block submitting runs / tasks to the project that does not exists.

What changes were proposed in this pull request?

In CreateUploadLocation, validate if the project exists before constructing signed url. If cannot find the project, raise "Not Found" error so flyte-sdk can raise it in CLI.

How was this patch tested?

Run flyte run and flyte deploy with project that does not exists. An error should be raise.

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Check all the applicable boxes

• I updated the documentation accordingly.
• All new and existing tests passed.
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Related PRs

Docs link

• main
  • Flyte 2 #6583
    • [V2] Dataproxy check project exists 👈