chore: Re-run renovate-config-validator (#3090)

Result of `npx --yes --package renovate -- renovate-config-validator`
from
https://docs.renovatebot.com/troubleshooting/#validating-configuration-changes

library_generation/owlbot/templates/java_library/renovate.json

@@ -1,7 +1,10 @@
-{% if migrated_split_repo %}{
+{% if migrated_split_repo %}
+{
   "enabled": false,
-{% else %}{
-{% endif %}  "extends": [
+{% else %}
+{
+{% endif %}
+  "extends": [
     ":separateMajorReleases",
     ":combinePatchMinorReleases",
     ":ignoreUnstable",
@@ -22,19 +25,23 @@
   "customManagers": [
     {
       "customType": "regex",
-        "fileMatch": [
+      "fileMatch": [
         "^.kokoro/presubmit/graalvm-native.*.cfg$"
       ],
-      "matchStrings": ["value: \"gcr.io/cloud-devrel-public-resources/graalvm.*:(?<currentValue>.*?)\""],
+      "matchStrings": [
+        "value: \"gcr.io/cloud-devrel-public-resources/graalvm.*:(?<currentValue>.*?)\""
+      ],
       "depNameTemplate": "com.google.cloud:sdk-platform-java-config",
       "datasourceTemplate": "maven"
     },
     {
       "customType": "regex",
       "fileMatch": [
-      "^.github/workflows/unmanaged_dependency_check.yaml$"
+        "^.github/workflows/unmanaged_dependency_check.yaml$"
+      ],
+      "matchStrings": [
+        "uses: googleapis/sdk-platform-java/java-shared-dependencies/unmanaged-dependency-check@google-cloud-shared-dependencies/v(?<currentValue>.+?)\\n"
       ],
-      "matchStrings": ["uses: googleapis/sdk-platform-java/java-shared-dependencies/unmanaged-dependency-check@google-cloud-shared-dependencies/v(?<currentValue>.+?)\\n"],
       "depNameTemplate": "com.google.cloud:sdk-platform-java-config",
       "datasourceTemplate": "maven"
     }
@@ -101,4 +108,4 @@
   ],
   "semanticCommits": true,
   "dependencyDashboard": true
-}
+}