chore(deps): update dependency ruby to v4

renovate[bot] · web-flow · commit 6abb6a1a5914 · 2025-12-25T04:32:18.000Z
diff --git a/.ruby-version b/.ruby-version
@@ -1 +1 @@
-3.3
+4.0.0
diff --git a/pact_broker/.ruby-version b/pact_broker/.ruby-version
@@ -1 +1 @@
-3.3.10
+4.0.0
