Use renovate to update cypress image

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>

.github/workflows/e2e.yml

@@ -64,6 +64,7 @@ jobs:
     needs: build-frontend
     runs-on: ubuntu-latest
     container:
+      # renovate: datasource=docker depName=cypress/browsers versioning=docker
       image: cypress/browsers:node16.5.0-chrome94-ff93
       options: --user 1001 --shm-size=2g
     strategy:

renovate.json

@@ -83,5 +83,14 @@
   "prHourlyLimit": 0,
   "schedule": [
     "on Saturday"
+  ],
+  "regexManagers": [
+    {
+      "fileMatch": ["\\.yml$", "\\.yaml$"],
+      "matchStrings": [
+        "# renovate: datasource=(?<datasource>.*?) depName=(?<depName>.*?)( versioning=(?<versioning>.*?))?\\s+\\S+:\\s+\"?(?<currentValue>[^\"]*?)\"?\\s"
+      ],
+      "versioningTemplate": "{{#if versioning}}{{{versioning}}}{{else}}semver{{/if}}"
+    }
   ]
 }