fix(ci): package rules for rpm-builder

Dockerfile

@@ -1,6 +1,6 @@
 FROM docker.io/library/rust:slim-buster AS build
 
-ARG RPMBUILDER_VERSION=master
+ARG RPMBUILDER_VERSION
 
 # install dependencies
 RUN set -e && \

Makefile

@@ -1,3 +1,7 @@
+# RPMBUILDER_VERSION
+# Only required to install a specifiy version
+RPMBUILDER_VERSION?=v0.8.1 # renovate: datasource=github-releases depName=rpm-builder lookupName=Richterrettich/rpm-builder versioning=semver
+
 # CONTAINER_RUNTIME
 # The CONTAINER_RUNTIME variable will be used to specified the path to a
 # container runtime. This is needed to start and run a container image.
@@ -19,6 +23,7 @@ RPMBUILDER_IMAGE_UNQUALIFIED=${RPMBUILDER_IMAGE_NAMESPACE}/${RPMBUILDER_IMAGE_NA
 PHONY:=container-image/build
 container-image/build:
 	${CONTAINER_RUNTIME} build \
+		--build-arg RPMBUILDER_VERSION=${RPMBUILDER_VERSION} \
 		--file Dockerfile \
 		--no-cache \
 		--pull \

renovate.json

@@ -1,8 +1,34 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "automerge": true,
+  "assignees": [ "volker.raschek" ],
   "automergeStrategy": "merge-commit",
   "automergeType": "pr",
+  "labels": [ "renovate" ],
+  "packageRules": [
+    {
+      "addLabels": [ "renovate/droneci", "renovate/automerge" ],
+      "automerge": true,
+      "matchManagers": "droneci",
+      "matchUpdateTypes": [ "minor", "patch"]
+    },
+    {
+      "addLabels": [ "renovate/rpm-builder", "renovate/automerge" ],
+      "automerge": false,
+      "matchPackageNames": [ "rpm-builder" ],
+      "matchManagers": [ "regex" ]
+    }
+  ],
   "rebaseLabel": "renovate/rebase",
-  "rebaseWhen": "behind-base-branch"
+  "rebaseWhen": "behind-base-branch",
+  "regexManagers": [
+    {
+      "description": "Update version",
+      "fileMatch": [
+        "^Makefile$"
+      ],
+      "matchStrings": [
+        "RPMBUILDER_VERSION\\?=(?<currentValue>.*) # renovate: datasource=(?<datasource>.*) depName=(?<depName>.*)( lookupName=(?<lookupName>.*))?( versioning=(?<versioning>.*))?"
+      ]
+    }
+  ]
 }