Update events.yml (#4746)

✨ Add Kotlin Cameroon 2025 event

- Title: Kotlin Cameroon
- Subject: Compose & KMP: "Building Modern and Performant Apps!"
- Dates: March 8, 2025
- Location: Douala, Cameroon (Online)
- Speakers: Ulrich Pouani, Jaures Beinjamin
- URL: https://www.linkedin.com/posts/kotlin-cameroon_kotlin-android-jetpackcompose-activity-7303471534222761986-04wp

This event highlights Kotlin technologies for building modern and high-performance applications.

Author: beinjamin

data/events.yml

@@ -1,3 +1,12 @@
+- lang: fr
+  startDate: '2025-03-08'
+  endDate: '2025-03-08'
+  location: Douala, Cameroon
+  online: true
+  speaker: Ulrich Pouani, Jaures Beinjamin
+  title: 'Kotlin Cameroon'
+  subject: Compose & KMP :"Construire des Apps Modernes et Performantes !". 
+  url: https://www.linkedin.com/posts/kotlin-cameroon_kotlin-android-jetpackcompose-activity-7303471534222761986-04wp?utm_source=share&utm_medium=member_desktop&rcm=ACoAADWUdFMBLMAq-imsylXYsbZIFGY4KKJ2cc4
 - lang: fr
   startDate: '2025-03-13'
   endDate: '2025-03-13'