NPM dependencies for local triggers are not installed

[birjj]

Description

When using local triggers, the trigger's dependencies (defined in triggers/<trigger-name>/package.json) aren't installed when running Actionsflow as an action.

As a result the "Run Actionsflow" step fails with

Error: Error: Cannot find module '<dependency-name>'
Require stack:
- /home/runner/work/actionsflow-automation/actionsflow-automation/triggers/<trigger-name>/index.js
- /home/runner/work/_actions/actionsflow/actionsflow-action/v1.3.0/dist/main/index.js

Steps to reproduce

See my demo repo.

Alternatively, create a local trigger yourself:

1. Create a triggers/foobar/ directory
2. Navigate into it and run npm init && npm install cheerio
3. Create an index.js file containing const { load } = require("cheerio");
4. Add the foobar trigger to one of your workflows
5. Run Actionsflow using the default GitHub Action

Expected result

The trigger dependencies should be installed, and the trigger should execute.

Actual result

The trigger dependencies were not installed, so the trigger failed with Error: Cannot find module '<dependency-name>'

[birjj]

As a workaround, it looks like adding the dependency to the root NPM module (package.json instead of triggers/<trigger-name>/package.json) and setting using: "local" resolves this, seeing as actionsflow-action runs npm install when using === "local".

This of course breaks with the contained nature of packages, and requires using: "local", so it isn't a long-term solution.