chore: Update renovate.json (#1968)

Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>

renovate.json

@@ -1,19 +1,39 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
-        "config:best-practices"
+    "config:recommended",
+    "helpers:pinGitHubActionDigestsToSemver"
   ],
   "labels": [
     "🛠️ dependencies"
   ],
   "dependencyDashboardApproval": true,
   "packageRules": [
+    {
+      "groupName": "golangci-lint",
+      "matchPackageNames": [
+        "github.com/golangci/golangci-lint/cmd/golangci-lint",
+        "golangci/golangci-lint",
+        "golangci/golangci-lint-action"
+      ]
+    },
+    {
+      "matchManagers": ["gomod"],
+      "matchDepTypes": ["indirect"],
+      "enabled": true
+    },
     {
       "groupName": "GitHub Actions",
       "matchManagers": [
         "github-actions"
       ]
     },
+    {
+      "groupName": "golang.org/x/",
+      "matchPackageNames": [
+        "golang.org/x/*"
+      ]
+    },
     {
       "groupName": "Go tools",
       "matchFileNames": [
@@ -36,10 +56,12 @@
       "customType": "regex",
       "fileMatch": ["."],
       "matchStrings": [
-                "[\\t ]*(?:#|//) ?renovate: (?<datasource>[^=]+)=(?<depName>\\S+)( registry=(?<registryUrl>\\S+))?( versioning=(?<versioning>\\S+))?[\\t ]*\\r?\\n.+?[:=][\\t ]*[\"']?(?<currentValue>[^@\\s\"'=]+)(?:@(?<currentDigest>sha256:[a-f0-9]+))?[\"']?"
+        "[\\t ]*(?:#|//) ?renovate: (?<datasource>git-refs)=(?<depName>\\S+)(?: branch=(?<currentValue>\\S+))?[\\t ]*\\r?\\n.+?[:=][\\t ]*[\"']?(?<currentDigest>[a-f0-9]+)[\"']?",
+        "[\\t ]*(?:#|//) ?renovate: (?<datasource>[^=]+)=(?<depName>\\S+)(?: registry=(?<registryUrl>\\S+))?(?: versioning=(?<versioning>\\S+))?[\\t ]*\\r?\\n.+?[:=][\\t ]*[\"']?(?<currentValue>[^@\\s\"'=]+)(?:@(?<currentDigest>sha256:[a-f0-9]+))?[\"']?"
       ],
+      "currentValueTemplate": "{{#if currentValue}}{{{currentValue}}}{{else if (equals datasource 'git-refs')}}main{{/if}}",
       "datasourceTemplate": "{{#if (equals datasource 'github')}}github-tags{{else}}{{{datasource}}}{{/if}}",
-            "versioningTemplate": "{{#if versioning}}{{{versioning}}}{{else if (equals datasource 'docker')}}docker{{else if (equals datasource 'deb')}}deb{{else}}semver{{/if}}"
+      "versioningTemplate": "{{#if (equals datasource 'docker')}}docker{{else if versioning}}{{{versioning}}}{{else}}semver{{/if}}"
     },
     {
       "customType": "regex",