chore: bump sam/build-java25 (#2465)

Bump sam/build-java25 Docker digest in e2e tests. Reviewed and approved by @phipag. Review performed by Claude.

Author: dependabot[bot]

powertools-e2e-tests/src/test/resources/docker/Dockerfile

@@ -1,5 +1,5 @@
 # Use the official AWS SAM base image for Java 25
-FROM public.ecr.aws/sam/build-java25@sha256:badfeb1beb0ae397f9b170a5139c49bff9bd0912c8debdb8c4c17a53e70b6195
+FROM public.ecr.aws/sam/build-java25@sha256:9ddb7b5954969c5d734b2dcd74ffd68b93816adc56a12209f6b8620ac107c899
 
 # Install GraalVM dependencies
 RUN curl -4 -L https://download.oracle.com/graalvm/25/latest/graalvm-jdk-25_linux-x64_bin.tar.gz | tar -xvz