ci: trigger split repo tests on auth, gax, and shared-deps changes (#12785)

Some "upstream" modules have a bit more impact and we want to test the
impact of the changes across the modules inside the monorepo.

Changes in auth, gax, or shared-deps can trigger downstream unit tests

Author: lqiu96

.github/workflows/ci.yaml

@@ -116,14 +116,53 @@ jobs:
     - uses: dorny/paths-filter@v4
       id: filter
       with:
+        # For each library, run CI in split repos where there are changes in:
+        # 1. Changes inside the split repo's module
+        # 2. Java code changes in upstream modules: Auth Library and Sdk-Platform-Java
+        # 3. Upstream dependency version changes: Shared-Deps and Gapic-Generator-Pom-Parent
         filters: |
-          java-bigquery: java-bigquery/**
-          java-bigquerystorage: java-bigquerystorage/**
-          java-datastore: java-datastore/**
-          java-logging-logback: java-logging-logback/**
-          java-logging: java-logging/**
-          java-spanner: java-spanner/**
-          java-storage: java-storage/**
+          java-bigquery:
+            - 'java-bigquery/**'
+            - 'google-auth-library-java/**/*.java'
+            - 'sdk-platform-java/**/*.java'
+            - 'sdk-platform-java/java-shared-dependencies/**/pom.xml'
+            - 'sdk-platform-java/gapic-generator-java-pom-parent/pom.xml'
+          java-bigquerystorage:
+            - 'java-bigquerystorage/**'
+            - 'google-auth-library-java/**/*.java'
+            - 'sdk-platform-java/**/*.java'
+            - 'sdk-platform-java/java-shared-dependencies/**/pom.xml'
+            - 'sdk-platform-java/gapic-generator-java-pom-parent/pom.xml'
+          java-datastore:
+            - 'java-datastore/**'
+            - 'google-auth-library-java/**/*.java'
+            - 'sdk-platform-java/**/*.java'
+            - 'sdk-platform-java/java-shared-dependencies/**/pom.xml'
+            - 'sdk-platform-java/gapic-generator-java-pom-parent/pom.xml'
+          java-logging-logback:
+            - 'java-logging-logback/**'
+            - 'google-auth-library-java/**/*.java'
+            - 'sdk-platform-java/**/*.java'
+            - 'sdk-platform-java/java-shared-dependencies/**/pom.xml'
+            - 'sdk-platform-java/gapic-generator-java-pom-parent/pom.xml'
+          java-logging:
+            - 'java-logging/**'
+            - 'google-auth-library-java/**/*.java'
+            - 'sdk-platform-java/**/*.java'
+            - 'sdk-platform-java/java-shared-dependencies/**/pom.xml'
+            - 'sdk-platform-java/gapic-generator-java-pom-parent/pom.xml'
+          java-spanner:
+            - 'java-spanner/**'
+            - 'google-auth-library-java/**/*.java'
+            - 'sdk-platform-java/**/*.java'
+            - 'sdk-platform-java/java-shared-dependencies/**/pom.xml'
+            - 'sdk-platform-java/gapic-generator-java-pom-parent/pom.xml'
+          java-storage:
+            - 'java-storage/**'
+            - 'google-auth-library-java/**/*.java'
+            - 'sdk-platform-java/**/*.java'
+            - 'sdk-platform-java/java-shared-dependencies/**/pom.xml'
+            - 'sdk-platform-java/gapic-generator-java-pom-parent/pom.xml'
   split-units:
     runs-on: ubuntu-latest
     needs: changes