ci: Add GitHub token permissions for workflows

[varunsh-coder]

Summary

This PR adds minimum token permissions for the GITHUB_TOKEN using https://github.com/step-security/secure-workflows.

GitHub recommends defining minimum GITHUB_TOKEN permissions for securing GitHub Actions workflows

• https://github.blog/changelog/2021-04-20-github-actions-control-permissions-for-github_token/
• https://docs.github.com/en/actions/security-guides/automatic-token-authentication#modifying-the-permissions-for-the-github_token
• The Open Source Security Foundation (OpenSSF) Scorecards treats not setting token permissions as a high-risk issue

This project is part of the top 100 critical projects as per OpenSSF (https://github.com/ossf/wg-securing-critical-projects), so fixing the token permissions to improve security.

Signed-off-by: Varun Sharma varunsh@stepsecurity.io

Changelog

[General] [Security] - Add GitHub token permissions for workflows

Test Plan

N/A

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	7,830,863	+0
android	hermes	armeabi-v7a	7,217,210	+0
android	hermes	x86	8,139,784	+0
android	hermes	x86_64	8,121,528	+0
android	jsc	arm64-v8a	9,696,493	+0
android	jsc	armeabi-v7a	8,451,913	+0
android	jsc	x86	9,647,125	+0
android	jsc	x86_64	10,244,951	+0

Base commit: 873ff0c
Branch: main

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
ios	-	universal	n/a	--

Base commit: 873ff0c
Branch: main

[facebook-github-bot]

@cortinico has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[react-native-bot]

This pull request was successfully merged by @varunsh-coder in 3da3d82.

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