Set action name to /ns/pkg/action just like the real thing

[purplecabbage]

Description

We were setting action name differently from Runtime.
Proper format is /ns/pkg/action

Related Issue

adobe/aio-cli#752

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[Copilot]

Pull Request Overview

This PR modifies the way the action name is set by aligning the format with the Runtime, ensuring that it follows the "/ns/pkg/action" pattern.

• Updated the __OW_ACTION_NAME environment variable to include the namespace, package name, and action name.
• Standardized the action name format to mirror the live runtime behavior.

Comments suppressed due to low confidence (1)

src/lib/run-dev.js:364

• [nitpick] Consider verifying that process.env.__OW_NAMESPACE does not already include a leading slash to avoid duplicating slashes in the resulting action name.

process.env.__OW_ACTION_NAME = `/${process.env.__OW_NAMESPACE}/${packageName}/${actionName}`

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (2b63ead) to head (df0bfc9).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
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  Coverage   100.00%   100.00%           
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  Files            7         7           
  Lines          642       642           
  Branches       132       132           
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  Hits           642       642           

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[shazron]

LGTM