Refactor pom.xml to use property versions

Author: SarthakSharma1807

pom.xml

@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" 
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <groupId>com.browserstack</groupId>
@@ -10,26 +12,30 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <maven.compiler.target>1.8</maven.compiler.target>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    
+    <selenium.version>4.1.4</selenium.version>
+    <testng.version>7.4.0</testng.version>
+    <browserstack.sdk.version>1.1.23</browserstack.sdk.version>
   </properties>
 
   <dependencies>
     <dependency>
       <groupId>org.seleniumhq.selenium</groupId>
       <artifactId>selenium-java</artifactId>
-      <version>4.22.0</version>
+      <version>${selenium.version}</version>
     </dependency>
 
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>7.10.2</version>
+      <version>${testng.version}</version>
       <scope>test</scope>
     </dependency>
 
     <dependency>
       <groupId>com.browserstack</groupId>
       <artifactId>browserstack-java-sdk</artifactId>
-      <version>LATEST</version>
+      <version>${browserstack.sdk.version}</version>
       <scope>compile</scope>
     </dependency>
   </dependencies>
@@ -39,7 +45,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.1</version> 
+        <version>3.8.1</version>
         <configuration>
           <source>1.8</source>
           <target>1.8</target>