chore: update ignore paths in renovate config (#1945)

Source-Link: googleapis/synthtool@571a091
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-java:latest@sha256:81c3ec554428c8ff6c92f0d58668b7ef52265d053a82284c97a326745e786949

Author: gcf-owl-bot[bot]

.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-java:latest
-  digest: sha256:1fb09a3eb66af09221da69087fd1b4d075bc7c79e508d0708f5dc0f842069da2
-# created: 2024-02-05T19:43:08.106031548Z
+  digest: sha256:81c3ec554428c8ff6c92f0d58668b7ef52265d053a82284c97a326745e786949
+# created: 2024-03-27T17:59:25.436353226Z

renovate.json

@@ -12,7 +12,10 @@
   ],
   "ignorePaths": [
     ".kokoro/requirements.txt",
-    ".github/workflows/**"
+    ".github/workflows/approve-readme.yaml",
+    ".github/workflows/ci.yaml",
+    ".github/workflows/renovate_config_check.yaml",
+    ".github/workflows/samples.yaml"
   ],
   "customManagers": [
     {
@@ -23,6 +26,15 @@
       "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$"
+      ],
+      "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"
     }
   ],
   "packageRules": [