feat(scopes): upload scopes to Mergify API

[sileht]

This will be used like this:

mergify ci scopes --write $RUNNER_TEMP/mergify-scopes.json
mergify ci scopes-send --file $RUNNER_TEMP/mergify-scopes.json

[sileht]

This pull request is part of a stack:

1. feat(scopes): upload scopes to Mergify API (#806) 👈
2. chore: remove click.Exception from modules (#807)
3. fix: better handling of GitHub events (#808)
4. feat: change configuration file format (#811)

[mergify]

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[mergify]

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@sileht this pull request is now in conflict 😩

[Copilot]

Pull Request Overview

This PR adds functionality to upload scope detection results to the Mergify API. The scopes command now not only detects which scopes are impacted by changed files but also uploads this information to Mergify when running in CI environments.

Key changes:

• Enhanced scopes CLI command to upload detected scopes to Mergify API
• Added utility functions for GitHub event handling and boolean environment variable parsing
• Implemented HTTP client for Mergify API communication

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
mergify_cli/utils.py	Added Mergify HTTP client, GitHub event parsing, and boolean environment utilities
mergify_cli/ci/scopes/cli.py	Modified detect function to return DetectedScope dataclass and added upload_scopes function
mergify_cli/ci/scopes/base_detector.py	Refactored GitHub event handling to use centralized utility function
mergify_cli/ci/detector.py	Added GitHub PR number detection and refactored boolean parsing to use utility
mergify_cli/ci/cli.py	Enhanced scopes command with API upload functionality and parameter validation
mergify_cli/tests/*	Comprehensive test coverage for new functionality

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