feat: add Maintainers Growth Working Group

WORKING_GROUPS.yaml

@@ -102,6 +102,36 @@ working_groups:
     objectives: 
       - https://github.com/users/Amzani/projects/12/views/1
     github_team: developer_experience_wg
+  - name: Maintainers Growth
+    description: The Maintainers Growth Working Group aims to help grow the number of maintainers at AsyncAPI.
+    chairpersons: 
+    - name: Sergio Moya
+      github: smoya
+      slack: UN22ZTLHG
+    - name: Alejandra Quetzalli
+      github: alequetzalli
+      slack: U02AKC14WAJ
+    members:
+      - name: Elegbede Azeez
+        github: AceTheCreator
+        slack: U01RWDD69PZ
+      - name: Aishat Muibudeen
+        github: Mayaleeeee
+        slack: U03CNHGEUR1
+      - name: Thulisile Sibanda
+        github: thulieblack
+        slack: U03CNJPMT7C
+      - name: Fran Méndez
+        github: fmvilas
+        slack: U34F2JRRS
+    slack:
+      channel: 
+        handle: wg-maintainers-growth
+        description: This is the channel for the Maintainers Growth Working Group.
+      group: 
+        handle: maintainers-growth-wg
+        description: Maintainers Growth Working Group
+    github_team: maintainers_growth_wg
   - name: Conference Coordination
     description: The goal of the group is to plan, manage, and create a seamless way to enhance the conference experience.
     chairpersons: