Update buildkite/plugin-tester Docker tag to v4

renovate[bot] · web-flow · commit 9ab19d7fed30 · 2023-01-11T00:24:54.000Z
diff --git a/docker-compose.yml b/docker-compose.yml
@@ -1,7 +1,7 @@
 version: '2'
 services:
   plugin:
-    image: buildkite/plugin-tester:v3.0.1
+    image: buildkite/plugin-tester:v4.0.0
     volumes:
       - ".:/plugin"
     depends_on:
