MINOR: Bump com.squareup.okhttp3:mockwebserver3-junit5 from 5.4.0 to 5.5.0 (#1331)

Author: dependabot[bot]

flight/flight-sql-jdbc-core/pom.xml

@@ -128,7 +128,7 @@ under the License.
     <dependency>
       <groupId>com.squareup.okhttp3</groupId>
       <artifactId>mockwebserver3-junit5</artifactId>
-      <version>5.4.0</version>
+      <version>5.5.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>