Add uploadvalidator plugin checker

Change-Id: I96a0bc899e06e4091a645bc8396f98a973e04e16
diff --git a/checkers.yaml b/checkers.yaml
index 0c44b1c..a9ee7a2 100644
--- a/checkers.yaml
+++ b/checkers.yaml
@@ -210,3 +210,8 @@
     repository: "plugins/task"
     name: "Zuul Check Pipeline"
     description: "Run Zuul jobs on new patchsets"
+
+  - uuid: "zuul-check:plugins_uploadvalidator"
+    repository: "plugins/uploadvalidator"
+    name: "Zuul Check Pipeline"
+    description: "Run Zuul jobs on new patchsets"
diff --git a/zuul/main.yaml b/zuul/main.yaml
index b1536f3..f58f499 100644
--- a/zuul/main.yaml
+++ b/zuul/main.yaml
@@ -55,3 +55,4 @@
           - plugins/serviceuser
           - plugins/slack-integration
           - plugins/task
+          - plugins/uploadvalidator