feat: change to buildrunner

- cleaned up multiple layers

Makefile

@@ -1,7 +1,6 @@
 # Variables
 ROOT_DIR := $(PWD)
 RPMS_DIR := $(ROOT_DIR)/rpms
-NFPM_VERSION := 2.41.1
 
 # Automatically find all package/version directories
 PACKAGES := $(shell find $(RPMS_DIR) -mindepth 2 -maxdepth 2 -type d | sed "s|$(RPMS_DIR)/||")
@@ -29,7 +28,6 @@ build:
 		export PACKAGE_RELEASE=$$(cat $(PACKAGE_VERSION)/release) && \
 		echo "Using PACKAGE_RELEASE=$${PACKAGE_RELEASE}" && \
 		docker build \
-			--build-arg NFPM_VERSION=$(NFPM_VERSION) \
 			--build-arg PACKAGE_VERSION=$(PACKAGE_VERSION) \
 			--build-arg PACKAGE_RELEASE=$${PACKAGE_RELEASE} \
 			-t $$(echo $(PACKAGE_NAME)-builder \