Bump gradle from 8.11-jdk17 to 8.12-jdk17 (#2556)

Bumps gradle from 8.11-jdk17 to 8.12-jdk17.


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Dockerfile.fat

@@ -1,5 +1,5 @@
 # Build the application
-FROM gradle:8.11-jdk17 AS build
+FROM gradle:8.12-jdk17 AS build
 
 # Set the working directory
 WORKDIR /app