gradle(deps): bump au.com.dius.pact from 4.5.5 to 4.5.6

Bumps au.com.dius.pact from 4.5.5 to 4.5.6.

---
updated-dependencies:
- dependency-name: au.com.dius.pact
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle.kts

@@ -7,7 +7,7 @@ plugins {
     id("java")
     id("org.springframework.boot") version "2.7.10"
     id("org.springframework.cloud.contract") version "3.1.6"
-    id("au.com.dius.pact") version "4.5.5"
+    id("au.com.dius.pact") version "4.5.6"
     id("io.spring.dependency-management") version "1.0.15.RELEASE"
     id("io.qameta.allure-aggregate-report") version "2.11.2"
     id("com.appland.appmap") version "1.1.1"