deps: moving gson to first-party-dependencies (#800)

Author: suztomo

first-party-dependencies/pom.xml

@@ -58,6 +58,7 @@
     <grpc.version>1.49.0</grpc.version>
     <gax.version>2.19.1</gax.version>
     <grpc-gcp.version>1.2.1</grpc-gcp.version>
+    <gson.version>2.9.1</gson.version>
     <guava.version>31.1-jre</guava.version>
     <protobuf.version>3.21.6</protobuf.version>
     <google.api-common.version>2.2.1</google.api-common.version>
@@ -91,6 +92,11 @@
         <artifactId>grpc-gcp</artifactId>
         <version>${grpc-gcp.version}</version>
       </dependency>
+      <dependency>
+        <groupId>com.google.code.gson</groupId>
+        <artifactId>gson</artifactId>
+        <version>${gson.version}</version>
+      </dependency>
       <dependency>
         <groupId>com.google.guava</groupId>
         <artifactId>guava-bom</artifactId>

third-party-dependencies/pom.xml

@@ -57,7 +57,6 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <site.installationModule>${project.artifactId}</site.installationModule>
 
-    <gson.version>2.9.1</gson.version>
     <threeten.version>1.6.1</threeten.version>
     <javax.annotations.version>1.3.2</javax.annotations.version>
     <animal-sniffer.version>1.22</animal-sniffer.version>
@@ -85,11 +84,6 @@
         <artifactId>httpclient</artifactId>
         <version>${httpcomponents.httpclient.version}</version>
       </dependency>
-      <dependency>
-        <groupId>com.google.code.gson</groupId>
-        <artifactId>gson</artifactId>
-        <version>${gson.version}</version>
-      </dependency>
       <dependency>
         <groupId>org.threeten</groupId>
         <artifactId>threetenbp</artifactId>