Update golang Docker tag to v1.22

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.21-alpine3.18 as builder
+FROM golang:1.22-alpine3.18 as builder
 # Do not remove `git` here, it is required for getting runner version when executing `make build`
 RUN apk add --no-cache make git
 

renovate.json

@@ -9,7 +9,7 @@
         {
           "customType": "regex",
           "fileMatch": ["Dockerfile"],
-          "matchStrings": ["ARG ACT_VERSION=[\"](?<currentValue>.*)[\"]"],
+          "matchStrings": ["ARG ACT_VERSION=(?<currentValue>.*)"],
           "datasourceTemplate": "gitea-releases",
           "depNameTemplate": "gitea/act_runner"
         }