chore(partnerctl): add GraalVM native-image setup and arm64 build tooling

PartnerCtl/scripts/build-native-arm64.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+MODULE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+REPO_DIR="$(cd "${MODULE_DIR}/.." && pwd)"
+IMAGE_NAME="${PARTNERCTL_ARM64_BUILDER_IMAGE:-partnerctl-native-arm64-builder:21}"
+DOCKERFILE="${MODULE_DIR}/Dockerfile.native-arm64"
+
+if ! docker image inspect "${IMAGE_NAME}" >/dev/null 2>&1; then
+  echo "[partnerctl] building reusable arm64 native builder image: ${IMAGE_NAME}"
+  docker buildx build \
+    --platform linux/arm64 \
+    -f "${DOCKERFILE}" \
+    -t "${IMAGE_NAME}" \
+    --load \
+    "${MODULE_DIR}"
+fi
+
+echo "[partnerctl] building linux-aarch64 native executable"
+docker run --rm \
+  --platform linux/arm64 \
+  --entrypoint /bin/bash \
+  -v "${REPO_DIR}":/workspace \
+  -v "${HOME}/.m2":/root/.m2 \
+  -w /workspace/PartnerCtl \
+  "${IMAGE_NAME}" \
+  -lc 'mvn -Pnative native:compile && file target/partnerctl'