renovate: setup a regex manager for versions in GHA files

.github/renovate.json

@@ -4,5 +4,14 @@
     "config:base",
     "github>msfjarvis/shared-workflows//renovate/automerge"
   ],
+  "regexManagers": [
+    {
+      "description": "Update versions in Actions files",
+      "fileMatch": [".yml$"],
+      "matchStrings": [
+        "datasource=(?<datasource>.*?)\s(depName=(?<depName>.*?))?\s.*-version: '(?<currentValue>.*?)'"
+      ]
+    }
+  ],
   "commitMessageSuffix": "[staging]"
 }

.github/workflows/build-test.yml

@@ -16,11 +16,13 @@ jobs:
       - name: Setup Latest Version of Hugo
         uses: peaceiris/actions-hugo@v2
         with:
+          # renovate: datasource=github-releases depName=gohugoio/hugo
           hugo-version: '0.91.0'
           extended: true
 
       - uses: actions/setup-go@v3
         with:
+          # renovate: datasource=golang-version
           go-version: '1.17.5'
 
       - name: Build

.github/workflows/deploy-to-cloudflare.yml

@@ -23,11 +23,13 @@ jobs:
       - name: Setup Latest Version of Hugo
         uses: peaceiris/actions-hugo@v2
         with:
+          # renovate: datasource=github-releases depName=gohugoio/hugo
           hugo-version: '0.91.0'
           extended: true
 
       - uses: actions/setup-go@v3
         with:
+          # renovate: datasource=golang-version
           go-version: '1.17.5'
 
       - name: Build Hugo Site
@@ -61,11 +63,13 @@ jobs:
       - name: Setup Latest Version of Hugo
         uses: peaceiris/actions-hugo@v2
         with:
+          # renovate: datasource=github-releases depName=gohugoio/hugo
           hugo-version: '0.91.0'
           extended: true
 
       - uses: actions/setup-go@v3
         with:
+          # renovate: datasource=golang-version
           go-version: '1.17.5'
   
       - name: Build Hugo Site