chore: Update guava in tests to v33.5.0 (#7261)

* chore: Update guava in tests to v33.5.0

* chore: Upgrade guava and errorprone

* chore: Move maven version to a property

* chore: Move errorprone to a profile

* chore: Try to keep the parent

* chore: Use java 8

* chore: Remove unneeded configs

* chore: Remove guava property

* Revert "chore: Remove guava property"

This reverts commit 84a9d9c.

Author: lqiu96

dashboard/pom.xml

@@ -30,9 +30,27 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <maven.compiler.source>1.8</maven.compiler.source>
     <maven.compiler.target>1.8</maven.compiler.target>
+
+    <guava.version>33.5.0-jre</guava.version>
   </properties>
 
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>com.google.guava</groupId>
+        <artifactId>guava-bom</artifactId>
+        <version>${guava.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
   <dependencies>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+    </dependency>
     <dependency>
       <groupId>org.freemarker</groupId>
       <artifactId>freemarker</artifactId>

tests/pom.xml

@@ -29,8 +29,25 @@
       <url>https://raw.githubusercontent.com/googleapis/google-cloud-java/master/LICENSE</url>
     </license>
   </licenses>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>com.google.guava</groupId>
+        <artifactId>guava-bom</artifactId>
+        <version>33.5.0-jre</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
   <!-- adding comment for testing-->
   <dependencies>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.google.cloud.tools</groupId>
       <artifactId>dependencies</artifactId>