Update dependency convex to v1.27.3

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This PR contains the following updates:

Package	Change	Age	Confidence
convex (source)	1.27.2 -> 1.27.3

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Release Notes

get-convex/convex-js (convex)

v1.27.3

• Convex CLI now respects HTTPS_PROXY / HTTP_PROXY environment variables.
  This is generally useful but was motivated by making Convex run in remote
  asynchronous agent environemnts like Codex.
• Cutoffs for logging large and slow Transition messages have been lowered.

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