deps: bump shared-deps version and add back certain test deps

pom.xml

@@ -63,17 +63,6 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <github.global.server>github</github.global.server>
     <site.installationModule>google-cloud-accessapproval-parent</site.installationModule>
-    <google.core.version>1.93.4</google.core.version>
-    <google.api-common.version>1.9.0</google.api-common.version>
-    <google.common-protos.version>1.17.0</google.common-protos.version>
-    <gax.version>1.56.0</gax.version>
-    <grpc.version>1.28.1</grpc.version>
-    <protobuf.version>3.11.4</protobuf.version>
-    <junit.version>4.13</junit.version>
-    <guava.version>29.0-android</guava.version>
-    <threeten.version>1.4.3</threeten.version>
-    <javax.annotations.version>1.3.2</javax.annotations.version>
-    <animal-sniffer.version>1.18</animal-sniffer.version>
   </properties>
 
   <dependencyManagement>
@@ -97,10 +86,18 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-shared-dependencies</artifactId>
-        <version>0.3.1</version>
+        <version>0.5.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
+
+      <!-- Test dependencies -->
+      <dependency>
+        <groupId>junit</groupId>
+        <artifactId>junit</artifactId>
+        <version>4.13</version>
+        <scope>test</scope>
+      </dependency>
     </dependencies>
   </dependencyManagement>