doc: update readme version

Author: adikari

README.md

@@ -18,7 +18,7 @@ If the version number is not provided then the most recent version of the plugin
 steps:
   - label: "Triggering pipelines"
     plugins:
-      - monebag/monorepo-diff#v2.5.1:
+      - monebag/monorepo-diff#v2.5.2:
           diff: "git diff --name-only HEAD~1"
           watch:
             - path: "bar-service/"
@@ -35,7 +35,7 @@ steps:
 steps:
   - label: "Triggering pipelines"
     plugins:
-      - monebag/monorepo-diff#v2.5.1:
+      - monebag/monorepo-diff#v2.5.2:
           diff: "git diff --name-only $(head -n 1 last_successful_build)"
           interpolation: false
           env:
@@ -131,7 +131,7 @@ Add `log_level` property to set the log level. Supported log levels are `debug`
 steps:
   - label: "Triggering pipelines"
     plugins:
-      - monebag/monorepo-diff#v2.5.1:
+      - monebag/monorepo-diff#v2.5.2:
           diff: "git diff --name-only HEAD~1"
           log_level: "debug" # defaults to "info"
           watch:
@@ -207,7 +207,7 @@ hooks:
 steps:
   - label: "Triggering pipelines"
     plugins:
-      - monebag/monorepo-diff#v2.5.1:
+      - monebag/monorepo-diff#v2.5.2:
           diff: "git diff --name-only HEAD~1"
           watch:
             - path: app/cms/