Add makeavish to list

[makeavish]

makeavish is maintainer of SigNoz

Please confirm this pull request meets the following requirements:

• [x] I followed the contributing guidelines: https://github.com/github/india/blob/main/CONTRIBUTING.md.

Which change are you proposing?

• [ ] Adding/updating open source project/s
• [x] Adding/updating maintainer/s

---

Adding/updating maintainer/s

• [x] Maintainer's location on their GitHub profile indicates as India
• [x] Maintainer has approved this PR to be included on the website

What open source project/s does the individual maintain?

He is part of SigNoz org on GitHub and maintains SigNoz project.

---

Please note: we will close your PR without comment if you do not check the boxes above and provide ALL requested information.