Revoke access token endpoint

[akhilmhdh]

Description 📣

1. Endpoint for revocation of access token
2. Docs for it

Type ✨

• [ ] Bug fix
• [x] New feature
• [ ] Breaking change
• [ ] Documentation

Tests 🛠️

# Here's some code block to paste some code snippets

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• [ ] I have read the contributing guide, agreed and acknowledged the code of conduct. 📝