Update pact_version to v4.6.19 (#663)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

build.gradle

@@ -22,7 +22,7 @@ ext {
   junit               = '5.11.4'
   junitPlatform       = '1.11.4'
   lombokVersion       = '1.18.42'
-  pact_version        = '4.6.18'
+  pact_version        = '4.6.19'
   reformLogging       = '6.1.9'
   restAssured         = '5.5.6'
   beftaFwVersion      = '9.2.4'