Bump WebRTC FYI xcode version.

As mentioned on [1], WebRTC uses xcode 10.2 in buckets/webrtc.fyi.star
and this may cause the problem mentioned on crbug.com/1052347.

[1] - https://bugs.chromium.org/p/chromium/issues/detail?id=1050976#c23

Bug: 1050976
Change-Id: I3e08b4dcce0c9ef8b92f2ac14a822a62ffa3803b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2056817Reviewed-by: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Stephen Martinis <martiniss@chromium.org>
Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Commit-Queue: Patrik Höglund <phoglund@chromium.org>
Cr-Commit-Position: refs/heads/master@{#743039}

infra/config/buckets/webrtc.fyi.star

@@ -88,31 +88,31 @@ builder(
 builder(
     name = 'WebRTC Chromium FYI Mac Builder',
     cores = 8,
-    caches = [xcode_cache.x10e1001],
+    caches = [xcode_cache.x11c29],
     goma_backend = goma.backend.RBE_PROD,
     os = os.MAC_ANY,
     properties = {
-        'xcode_build_version': '10e1001',
+        'xcode_build_version': '11c29',
     },
 )
 
 builder(
     name = 'WebRTC Chromium FYI Mac Builder (dbg)',
     cores = 8,
-    caches = [xcode_cache.x10e1001],
+    caches = [xcode_cache.x11c29],
     goma_backend = goma.backend.RBE_PROD,
     os = os.MAC_ANY,
     properties = {
-        'xcode_build_version': '10e1001',
+        'xcode_build_version': '11c29',
     },
 )
 
 builder(
     name = 'WebRTC Chromium FYI Mac Tester',
-    caches = [xcode_cache.x10e1001],
+    caches = [xcode_cache.x11c29],
     os = os.MAC_ANY,
     properties = {
-        'xcode_build_version': '10e1001',
+        'xcode_build_version': '11c29',
     },
     triggered_by = ['WebRTC Chromium FYI Mac Builder'],
 )

infra/config/generated/cr-buildbucket.cfg

@@ -20617,12 +20617,12 @@ buckets: <
         cipd_version: "refs/heads/master"
         properties_j: "$build/goma:{\"rpc_extra_params\":\"?prod\",\"server_host\":\"goma.chromium.org\"}"
         properties_j: "mastername:\"chromium.webrtc.fyi\""
-        properties_j: "xcode_build_version:\"10e1001\""
+        properties_j: "xcode_build_version:\"11c29\""
       >
       execution_timeout_secs: 7200
       caches: <
-        name: "xcode_ios_10e1001"
-        path: "xcode_ios_10e1001.app"
+        name: "xcode_ios_11c29"
+        path: "xcode_ios_11c29.app"
       >
       build_numbers: YES
       service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
@@ -20641,12 +20641,12 @@ buckets: <
         cipd_version: "refs/heads/master"
         properties_j: "$build/goma:{\"rpc_extra_params\":\"?prod\",\"server_host\":\"goma.chromium.org\"}"
         properties_j: "mastername:\"chromium.webrtc.fyi\""
-        properties_j: "xcode_build_version:\"10e1001\""
+        properties_j: "xcode_build_version:\"11c29\""
       >
       execution_timeout_secs: 7200
       caches: <
-        name: "xcode_ios_10e1001"
-        path: "xcode_ios_10e1001.app"
+        name: "xcode_ios_11c29"
+        path: "xcode_ios_11c29.app"
       >
       build_numbers: YES
       service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
@@ -20663,12 +20663,12 @@ buckets: <
         cipd_package: "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build"
         cipd_version: "refs/heads/master"
         properties_j: "mastername:\"chromium.webrtc.fyi\""
-        properties_j: "xcode_build_version:\"10e1001\""
+        properties_j: "xcode_build_version:\"11c29\""
       >
       execution_timeout_secs: 7200
       caches: <
-        name: "xcode_ios_10e1001"
-        path: "xcode_ios_10e1001.app"
+        name: "xcode_ios_11c29"
+        path: "xcode_ios_11c29.app"
       >
       build_numbers: YES
       service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"