Update common Prometheus files

Signed-off-by: prombot <prometheus-team@googlegroups.com>

Author: prombot

Makefile.common

@@ -55,7 +55,7 @@ ifneq ($(shell command -v gotestsum 2> /dev/null),)
 endif
 endif
 
-PROMU_VERSION ?= 0.18.0
+PROMU_VERSION ?= 0.18.1
 PROMU_URL     := https://github.com/prometheus/promu/releases/download/v$(PROMU_VERSION)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM).tar.gz
 
 SKIP_GOLANGCI_LINT :=
@@ -90,8 +90,10 @@ ifdef DOCKERFILE_PATH
 $(error DOCKERFILE_PATH is deprecated. Use DOCKERFILE_VARIANTS ?= $(DOCKERFILE_PATH) in the Makefile)
 endif
 
-DOCKER_ARCHS            ?= amd64
-DOCKERFILE_VARIANTS     ?= Dockerfile $(wildcard Dockerfile.*)
+DOCKER_ARCHS ?= amd64 armv7 arm64 ppc64le riscv64 s390x
+DOCKERFILE_ARCH_EXCLUSIONS ?=
+DOCKER_REGISTRY_ARCH_EXCLUSIONS ?= quay.io:riscv64
+DOCKERFILE_VARIANTS     ?= $(wildcard Dockerfile Dockerfile.*)
 
 # Function to extract variant from Dockerfile label.
 # Returns the variant name from io.prometheus.image.variant label, or "default" if not found.