Bump tool dependencies (#19946)

```release-note NONE ```
2022-04-08 12:16:38 +05:30
--- a/plugin/plugintest/api.go
+++ b/plugin/plugintest/api.go
@@ -1,4 +1,4 @@
-// Code generated by mockery v1.0.0. DO NOT EDIT.
+// Code generated by mockery v2.10.4. DO NOT EDIT.

 // Regenerate this file using `make plugin-mocks`.

--- a/plugin/plugintest/driver.go
+++ b/plugin/plugintest/driver.go
@@ -1,4 +1,4 @@
-// Code generated by mockery v1.0.0. DO NOT EDIT.
+// Code generated by mockery v2.10.4. DO NOT EDIT.

 // Regenerate this file using `make plugin-mocks`.

--- a/plugin/plugintest/hooks.go
+++ b/plugin/plugintest/hooks.go
@@ -1,4 +1,4 @@
-// Code generated by mockery v1.0.0. DO NOT EDIT.
+// Code generated by mockery v2.10.4. DO NOT EDIT.

 // Regenerate this file using `make plugin-mocks`.