chore: bump sam/build-java21 (#2201)

Bumps sam/build-java21 from `1d40149` to `e12c501`.

---
updated-dependencies:
- dependency-name: sam/build-java21
  dependency-version: e12c501aa7d3d3dc04be0d900115a0339c73f523ad73a9aecd9e99499413c465
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

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

@@ -1,5 +1,5 @@
 # Use the official AWS SAM base image for Java 21
-FROM public.ecr.aws/sam/build-java21@sha256:1d40149444f21a5b20e8f54275f9173265d57522ff8669fa3f8fefbaf24657da
+FROM public.ecr.aws/sam/build-java21@sha256:e12c501aa7d3d3dc04be0d900115a0339c73f523ad73a9aecd9e99499413c465
 
 # Install GraalVM dependencies
 RUN curl -4 -L https://download.oracle.com/graalvm/21/latest/graalvm-jdk-21_linux-x64_bin.tar.gz | tar -xvz