Update buildbot names to new ones

Buildbots are switched from GYP to GN builds (https://crrev.com/2142353004),
so the bot names in commit queue need to be updated accordingly.

BUG=pdfium:484
TBR=thestig@chromium.org
NOTRY=true (trybots need this change to function)

Review-Url: https://codereview.chromium.org/2149003002
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 017e68c..bf3aab2 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -40,7 +40,7 @@
         name: "linux_xfa"
       }
       builders {
-        name: "linux_xfa_rel_gn"
+        name: "linux_xfa_rel_gyp"
       }
       builders {
         name: "mac"
@@ -56,7 +56,7 @@
         name: "mac_xfa"
       }
       builders {
-        name: "mac_xfa_rel_gn"
+        name: "mac_xfa_rel_gyp"
       }
       builders {
         name: "win"
@@ -76,7 +76,7 @@
         experiment_percentage: 100
       }
       builders {
-        name: "win_xfa_64_rel_gn"
+        name: "win_xfa_64_rel_gyp"
       }
     }
   }