feat(workflow_engine): Add a DataConditionHandlerType to each DataConditionHandler

[saponifi3d]

Description

As we were implementing DataConditionHandlers, I realized we didn't have a way to filter each handler in an API for the UI. This allow users to select the type of handler they want, and then configure it.

To address this, adding a static type to the condition handlers to match where in the product they'll be used;

• detector triggers (used for setting thresholds and then results give detector states)
• workflow triggers (used for workflow conditions, to evaluate if the issues are new / regressed, etc)
• action filters (used to decide if we want to invoke an action in a workflow or not, if a tag is set or a priority needs to be met)

[saponifi3d]

@cathteng can you confirm we need this condition handler? i think we might be able to remove it since it always evaluates as truthy (if we don't have a condition in a condition group that also evaluates as truthy).

[cathteng]

i think you might be right, this was added in the past by default for issue alerts with no conditions in the WHEN 😬 but now we have a default evaluation for it

[cathteng]

just these two should be workflow triggers!

[codecov]

Codecov Report

Attention: Patch coverage is 97.56098% with 1 line in your changes missing coverage. Please review.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/sentry/workflow_engine/types.py	88.88%	1 Missing ⚠️

Additional details and impacted files

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+ Misses     286238    66629   -219609     
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