renovate.json: add regex for cypress docker image

Pin the browser versions with the digest, because updating them
with renovate did not work.

Author: BacLuc

docker-compose.yml

@@ -159,7 +159,7 @@ services:
       - FUNCTION_ENABLE_INCOGNITO_MODE=true
 
   e2e:
-    image: cypress/included:cypress-13.13.0-node-20.15.1-chrome-126.0.6478.114-1-ff-128.0-edge-126.0.2592.61-1@sha256:f9733a2cadc3aa270e40f8ce1158a23cb99703476a9db7154b4ecc51ba02bd5c
+    image: cypress/included:13.13.0@sha256:f9733a2cadc3aa270e40f8ce1158a23cb99703476a9db7154b4ecc51ba02bd5c
     profiles: ['e2e']
     container_name: 'ecamp3-e2e'
     environment:

renovate.json

@@ -264,6 +264,16 @@
       "versioningTemplate": "regex:^(?<major>\\d+)\\.(?<minor>\\d+)\\.(?<patch>\\d+).*?$",
       "extractVersionTemplate": "^v(?<version>.*)$"
     },
+    {
+      "customType": "regex",
+      "fileMatch": [
+        "^docker-compose.yml$"
+      ],
+      "matchStrings": [
+        "image:\\s+'(?<depName>cypress/included):(?<currentValue>.*)@(?<currentDigest>.*)'\\s"
+      ],
+      "datasourceTemplate": "docker"
+    },
     {
       "customType": "regex",
       "fileMatch": [