chore: Parameterize dependency versions

build.gradle

@@ -24,18 +24,22 @@ repositories {
 }
 
 dependencies {
-    implementation 'commons-codec:commons-codec:1.16.0'
-    implementation 'org.apache.httpcomponents:httpclient:4.5.14'
-    implementation 'org.apache.httpcomponents:httpmime:4.5.14'
-    implementation 'com.fasterxml.jackson.core:jackson-databind:2.15.3'
-    implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.15.3'
-    implementation 'com.vonage:jwt:1.1.0'
-
-    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.10.1'
-    testImplementation 'org.junit.vintage:junit-vintage-engine:5.10.1'
-    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.10.1'
-    testImplementation 'org.mockito:mockito-inline:4.11.0'
-    testImplementation 'jakarta.servlet:jakarta.servlet-api:4.0.4'
+    def jacksonVersion = '2.15.3'
+    def httpclientVersion = '4.5.14'
+    def junitVersion = '5.10.1'
+
+    implementation "commons-codec:commons-codec:1.16.0"
+    implementation "org.apache.httpcomponents:httpclient:$httpclientVersion"
+    implementation "org.apache.httpcomponents:httpmime:$httpclientVersion"
+    implementation "com.fasterxml.jackson.core:jackson-databind:$jacksonVersion"
+    implementation "com.fasterxml.jackson.datatype:jackson-datatype-jsr310:$jacksonVersion"
+    implementation "com.vonage:jwt:1.1.0"
+
+    testImplementation "org.junit.jupiter:junit-jupiter-api:$junitVersion"
+    testImplementation "org.junit.vintage:junit-vintage-engine:$junitVersion"
+    testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$junitVersion"
+    testImplementation "org.mockito:mockito-inline:4.11.0"
+    testImplementation "jakarta.servlet:jakarta.servlet-api:4.0.4"
 }
 
 test {