[CQ] Add more next-gen bots to CQ experiment

infra/config/cq.cfg

 # See http://luci-config.appspot.com/schemas/projects/refs:cq.cfg for the
 # documentation of this file format.
 
 version: 1
 cq_name: "v8"
 cq_status_url: "https://chromium-cq-status.appspot.com"
 hide_ref_in_committed_msg: true
 commit_burst_delay: 60
 max_commit_burst: 1
 target_ref: "refs/pending/heads/master"
@@ skipping 10 matching lines @@
 
   tree_status {
     tree_status_url: "https://v8-status.appspot.com"
   }
 
   try_job {
     buckets {
       name: "tryserver.v8"
       builders { name: "v8_android_arm_compile_rel" }
       builders { name: "v8_linux64_asan_rel" }
+      builders {
+        name: "v8_linux64_asan_rel_ng"
+        experiment_percentage: 10
+      }
       builders { name: "v8_linux64_avx2_rel" }
+      builders {
+        name: "v8_linux64_avx2_rel_ng"
+        experiment_percentage: 10
+      }
       builders { name: "v8_linux64_rel_ng" }
       builders {
         name: "v8_linux64_rel_ng_triggered"
         triggered_by: "v8_linux64_rel_ng"
       }
       builders { name: "v8_linux_arm64_rel" }
+      builders {
+        name: "v8_linux_arm64_rel_ng"
+        experiment_percentage: 10
+      }
       builders { name: "v8_linux_arm_rel" }
+      builders {
+        name: "v8_linux_arm_rel_ng"
+        experiment_percentage: 10
+      }
       builders { name: "v8_linux_chromium_gn_rel" }
       builders { name: "v8_linux_dbg_ng" }
       builders {
         name: "v8_linux_dbg_ng_triggered"
         triggered_by: "v8_linux_dbg_ng"
       }
       builders { name: "v8_linux_gcc_compile_rel" }
       builders { name: "v8_linux_mipsel_compile_rel" }
       builders { name: "v8_linux_mips64el_compile_rel" }
       builders { name: "v8_linux_nodcheck_rel" }
+      builders {
+        name: "v8_linux_nodcheck_rel_ng"
+        experiment_percentage: 10
+      }
       builders { name: "v8_linux_rel_ng" }
       builders {
         name: "v8_linux_rel_ng_triggered"
         triggered_by: "v8_linux_rel_ng"
       }
       builders { name: "v8_mac_rel" }
+      builders {
+        name: "v8_mac_rel_ng"
+        experiment_percentage: 10
+      }
       builders { name: "v8_presubmit" }
       builders { name: "v8_win64_rel_ng" }
       builders {
         name: "v8_win64_rel_ng_triggered"
         triggered_by: "v8_win64_rel_ng"
       }
       builders { name: "v8_win_compile_dbg" }
       builders { name: "v8_win_nosnap_shared_rel_ng" }
       builders {
         name: "v8_win_nosnap_shared_rel_ng_triggered"
@@ skipping 11 matching lines @@
       builders {
         name: "v8_linux64_sanitizer_coverage_rel"
         experiment_percentage: 100
       }
     }
   }
 
   sign_cla {}
 }