deps: Upgrade Guava to v33.6.0-jre (#13875)

Author: lqiu96

google-auth-library-java/pom.xml

@@ -76,7 +76,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.google.http.version>2.2.0</project.google.http.version>
     <project.junit.version>5.11.4</project.junit.version>
-    <project.guava.version>33.5.0-jre</project.guava.version>
+    <project.guava.version>33.6.0-jre</project.guava.version>
     <project.appengine.version>2.0.33</project.appengine.version>
     <project.findbugs.version>3.0.2</project.findbugs.version>
     <deploy.autorelease>false</deploy.autorelease>

grpc-gcp-java/pom.xml

@@ -67,7 +67,7 @@
     <error-prone-annotations.version>2.48.0</error-prone-annotations.version>
     <google-http-client.version>2.2.0</google-http-client.version>
     <gson.version>2.13.2</gson.version>
-    <guava.version>33.5.0-jre</guava.version>
+    <guava.version>33.6.0-jre</guava.version>
     <protobuf.version>4.33.2</protobuf.version>
     <grpc.version>1.81.0</grpc.version>
     <jsr305.version>3.0.2</jsr305.version>

sdk-platform-java/gapic-generator-java-pom-parent/pom.xml

@@ -30,7 +30,7 @@
     <grpc.version>1.81.0</grpc.version>
     <google.http-client.version>2.2.0</google.http-client.version>
     <gson.version>2.13.2</gson.version>
-    <guava.version>33.5.0-jre</guava.version>
+    <guava.version>33.6.0-jre</guava.version>
     <protobuf.version>4.33.2</protobuf.version>
     <opentelemetry.version>1.62.0</opentelemetry.version>
     <errorprone.version>2.48.0</errorprone.version>