[tools] Add command to import accepted issues from GitHub to Linear (#22062)

# Why

In order to facilitate the management of SDK issues this PR proposes
automatically importing GitHub issues labe

[tools] Add command to import accepted issues from GitHub to Linear (#22062)

# Why

In order to facilitate the management of SDK issues this PR proposes
automatically importing GitHub issues labeled with the `issue-accepted`
tag to Linear, allowing us to better keep track of the status of each
individual issue, adding them to SDK projects, and centralizing internal
discussions in a single place.

Closes ENG-8130

# How

This PR introduces a new `et` command to import accepted issues from
GitHub to Linear, `et import-github-issue-to-linear` and also updates
the `issue-accepted` job of the `Issue Triage` workflow to run it every
time an issue is labeled as accepted.

To make the issue summary more concise and readable, this new command
uses GPT-4 to automatically summarize the problem described in the
GitHub issue, allowing team members to quickly skim through the text and
understand the issue.

Additionally, this new command attempts to infer a Linear user to assign
the issue by checking for users with the same full name, nickname, or
email address, in case a user was added as an assignee in the GitHub
issue.

Example of an issue automatically imported -> ENG-8187

# Test Plan

Run `et igitl --issue X` locally

# Checklist

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Please check the appropriate items below if they apply to your diff.
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- [ ] Documentation is up to date to reflect these changes (eg:
https://docs.expo.dev and README.md).
- [ ] Conforms with the [Documentation Writing Style
Guide](https://github.com/expo/expo/blob/main/guides/Expo%20Documentation%20Writing%20Style%20Guide.md)
- [ ] This diff will work correctly for `expo prebuild` & EAS Build (eg:
updated a module plugin).

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