devapp/owners: add matloob and taking as owner of vet

Change-Id: I42c24f2d6f3020791ce1c3ec15799e202ce583a0
Reviewed-on: https://go-review.googlesource.com/c/build/+/308629
Trust: Tim King <taking@google.com>
Run-TryBot: Tim King <taking@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>

devapp/owners/table.go

@@ -213,7 +213,8 @@ var entries = map[string]*Entry{
 		Primary: []Owner{mknyszek, prattmic},
 	},
 	"go/src/cmd/vet": {
-		Primary: []Owner{adonovan},
+		Primary:   []Owner{matloob},
+		Secondary: []Owner{taking},
 	},
 	"go/src/compress/bzip2": {
 		Primary:   []Owner{joetsai},