docs: Update Maintainers (#7455)

<!-- Describe what has changed in this PR -->
**What changed?**
Updating maintainer list with the active maintainers


<!-- Tell your future self why have you made these changes -->
**Why?**


<!-- How have you verified this change? Tested locally? Added a unit
test? Checked in staging env? -->
**How did you test it?**


<!-- Assuming the worst case, what can be broken when deploying this
change to production? -->
**Potential risks**

<!-- Is it notable for release? e.g. schema updates, configuration or
data migration required? If so, please mention it, and also update
CHANGELOG.md -->
**Release notes**

<!-- Is there any documentation updates should be made for config,
https://cadenceworkflow.io/docs/operation-guide/setup/ ? If so, please
open an PR in https://github.com/cadence-workflow/cadence-docs -->
**Documentation Changes**

Signed-off-by: Ender Demirkaya <enderd@uber.com>

Author: demirkayaender

MAINTAINERS.md

@@ -1,28 +1,28 @@
 # Maintainers
 
 - Ender Demirkaya (https://github.com/demirkayaender)
-- Taylan Isikdemir (https://github.com/taylanisikdemir)
 - Jan Kisel (https://github.com/dkrotx)
 
 - Abhishek Jha (https://github.com/abhishekj720)
 - Adhitya Mamallan (https://github.com/adhityamamallan)
-- Assem Hafez (https://github.com/Assem-Uber)
+- Assem Hafez (https://github.com/Assem-Hafez)
 - Bowen Xiao (https://github.com/bowenxia)
 - Chris Warren (https://github.com/c-warren)
+- Diana Zawadzki (https://github.com/zawadzkidiana)
 - David Porter (https://github.com/davidporter-id-au)
-- Emrah Seker (https://github.com/emrahs)
+- Eleonora Di Gregorio (https://github.com/eleonoradgr)
 - Felipe Imanishi (https://github.com/fimanishi)
 - Gaziza Yestemirova (https://github.com/gazi-yestemirova)
 - Ignat Tubylov (https://github.com/tubignat)
 - Ilya Ozherelyev (https://github.com/3vilhamster)
 - Jakob Haahr Taankvist (https://github.com/jakobht)
-- Josué Alexander Ibarra (https://github.com/ibarrajo)
-- Mantas Šidlauskas (https://github.com/mantas-sidlauskas)
+- Kevin Burns (https://github.com/Bueller87)
 - Nate Mortensen (https://github.com/natemort)
 - Neil Xie (https://github.com/neil-xie)
 - Sankari Gopalakrishnan (https://github.com/sankari165)
 - Shijie Sheng (https://github.com/shijiesheng)
 - Steven Littiebrant (https://github.com/Groxx)
+- Tim Chan (https://github.com/macrotim)
 - Tim Li (https://github.com/timl3136)
 - Vsevolod Kaloshin (https://github.com/arzonus)
 - Zijian Chen (https://github.com/Shaddoll)