Fix renovate config for gitsubmodule (#1134)

Renovate recognizes packages in git submodule as `"packageName":
"https://github.com/line/line-openapi.git"`. however, this repository
specifies `"matchPackagePatterns": ["^line-openapi$"]`. This won't be
matched the submodule, and special config doesn't work. This change
fixes it.

(same as line/line-bot-sdk-php#654)

renovate.json5

@@ -1,24 +1,34 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
-    "config:base"
+    "config:recommended"
   ],
   "timezone": "Asia/Tokyo",
   "automerge": true,
   "platformAutomerge": true,
   "git-submodules": {
     "enabled": true
   },
-  "labels": [ "dependency upgrade" ],
+  "labels": [
+    "dependency upgrade"
+  ],
   "packageRules": [
     {
-      "matchPackagePatterns": ["^line-openapi$"],
-      "labels": ["dependency upgrade", "line-openapi-update"],
+      "matchPackagePatterns": [
+        "line-openapi"
+      ],
+      "labels": [
+        "dependency upgrade",
+        "line-openapi-update"
+      ],
       // In many cases, we would like to update line-openapi by dispatching the GitHub workflow during working
       // hours, as there are code changes.
       // If that is forgotten, there's a possibility that line-openapi updates or code changes won't happen at
       // all, so we allow it to run at night just in case.
-      "schedule": ["after 11pm and before 4am"]
+      "schedule": [
+        "after 11pm",
+        "before 4am"
+      ]
     },
     {
       "matchPaths": [