Apply code formatting before Maven build in Docker image

Run spotless:apply before mvn install to ensure consistent code formatting in the Docker build process.

Signed-off-by: Pratik Raj <rajpratik71@gmail.com>

Author: rajpratik71

docker/Dockerfile.build

@@ -16,7 +16,7 @@
 FROM maven:3.9.9-eclipse-temurin-17 as build
 COPY . /benchmark
 WORKDIR /benchmark
-RUN mvn install
+RUN mvn spotless:apply && mvn install
 
 # Create the benchmark image
 FROM eclipse-temurin:17