feat(alert): allow defining ClickHouse request timeout (#1239)

Provides support for defining the ClickHouse client request timeout from a command line arg. Uses a default value of 30 seconds if the argument is not defined.

Refactors the task arg validation and parsing to leverage zod now that we have more than a few parameters.

Author: dhable

.changeset/shaggy-clocks-whisper.md

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+---
+"@hyperdx/api": minor
+---
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+Allows defining the ClickHouse request timeout value from the command line on the check-alert task