fix(deps): update dependency au.com.dius.pact.provider:junit to v4.6.20

Ref: PACT-445

Author: pactflow-renovate-bot[bot]

build.gradle

@@ -25,7 +25,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-web'
 	implementation 'org.springframework.boot:spring-boot-starter-graphql'
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
-	testImplementation 'au.com.dius.pact.provider:junit:4.6.19'
+	testImplementation 'au.com.dius.pact.provider:junit:4.6.20'
 	testImplementation 'au.com.dius.pact.provider:junit5:4.6.19'
 	testImplementation 'au.com.dius.pact.provider:spring:4.6.19'