[DEN-2025] update sponsors, organizer employer (#15344)

* castai logo update

* same logo - better resolution

* init spacelift sponsor to DEN25

* update organizer employer

* remove earlybird copy

* Add release team supporter

* cast ai data update

Author: themightymuppet

assets/sponsors/c/castai-before-20250721.png

@@ -40,7 +40,7 @@ Description = "devopsdays Denver 2025"
     <strong>Register</strong>
   </div>
   <div class = "col-md-8">
-    {{< event_link page="registration" text="Early bird tickets sales end July 15!" >}}
+    {{< event_link page="registration" text="Get your tickets today!" >}}
   </div>
 </div>
 

assets/sponsors/c/castai.png

@@ -112,7 +112,7 @@ sponsors:
     level: community
   - id: s3
     level: bronze
-  - id: castai
+  - id: castai-before-20250721
     level: icecream
 
 #sponsors_accepted : "yes" # Whether you want "Become a XXX Sponsor!" link

assets/sponsors/s/spacelift.png

@@ -164,7 +164,7 @@ sponsors:
     level: gold
   - id: autoptic
     level: gold
-  - id: castai
+  - id: castai-before-20250721
     level: happyhour
   - id: tigris-data
     level: happyhour

content/events/2025-denver/welcome.md

@@ -228,7 +228,7 @@ sponsors:
     level: gold
   - id: redhat
     level: gold
-  - id: castai
+  - id: castai-before-20250721
     level: gold
   - id: coralogix
     level: gold

data/events/2023/vilnius/main.yml

@@ -66,7 +66,7 @@ team_members: # Name is the only required field for team members.
     employer: "Akamai"
   - name: "Tavis Aitken"
     twitter: "tavisto"
-    employer: "Splunk"
+    employer: "EasyPost"
     mastodon: "https://hachyderm.io/@tavisto"
   - name: "Carla Murray"
     employer: "Splunk"
@@ -83,10 +83,14 @@ sponsors:
     level: gold
   - id: castai
     level: gold
+  - id: spacelift
+    level: gold
   - id: flox
     level: silver
   - id: fairwinds
     level: supporter
+  - id: releaseteam
+    level: supporter
   - id: code-talent
     level: community
   - id: kubecareers

data/events/2024/austin/main.yml

@@ -0,0 +1,2 @@
+name: "castai"
+url: "https://cast.ai/"