fix Tractive lower-case typo

Author: jetzlstorfer

_data/events.yml

@@ -574,7 +574,7 @@
 - id: 39
   title: "Zero-Downtime Experiences & Event-Driven Microservices at scale"
   date: "2025-04-29"
-  host: "tractive"
+  host: "Tractive"
   event_link: "https://www.meetup.com/cloud-native-linz/events/307219291/"
   registrations: ""
   participants: "31"
@@ -631,4 +631,4 @@
       speaker: "Markus Adelsberger & Georg Mayrhauser"
       image: "https://media.licdn.com/dms/image/v2/C4E03AQHKADs1R6XXuw/profile-displayphoto-shrink_800_800/profile-displayphoto-shrink_800_800/0/1653720929705?e=1757548800&v=beta&t=vzgx8X9dsz8AztA1wzVPkKW8yPKhK_XzWmyvGHqdR9Q"
     - title: "Open Mic - Share your Cloud Native Journey"
-      speaker: "the community"
+      speaker: "the community"