Use exact Gateway build number 253.25908.25 for 2025.3

Author: aseemxs

buildSrc/src/main/kotlin/software/aws/toolkits/gradle/intellij/IdeVersions.kt

@@ -156,7 +156,7 @@ object IdeVersions {
         Profile(
             name = "2025.3",
             gateway = ProductProfile(
-                sdkVersion = "253.25908-EAP-CANDIDATE-SNAPSHOT",
+                sdkVersion = "253.25908.25",
                 bundledPlugins = listOf("org.jetbrains.plugins.terminal")
             ),
             community = ProductProfile(