[ci.yaml] Add default properties and dimensions (#28072)

Author: Casey Hillers

.ci.yaml

@@ -14,6 +14,19 @@ enabled_branches:
 platform_properties:
   linux:
     properties:
+      build_host: "false"
+      build_fuchsia: "false"
+      build_android_debug: "false"
+      build_android_aot: "false"
+      build_android_vulkan: "false"
+      build_ios: "false"
+      build_windows_uwp: "false"
+      build_android_jit_release: "false"
+      gcs_goldens_bucket: ""
+      ios_debug: "false"
+      ios_profile: "false"
+      ios_release: "false"
+      no_bitcode: "false"
       caches: >-
         [
           {"name":"builder_linux_engine","path":"builder"},
@@ -24,9 +37,23 @@ platform_properties:
         [
           {"dependency": "open_jdk", "version": "version:1.8.0u202-b08"}
         ]
+      device_type: none
       os: Linux
   mac:
     properties:
+      build_host: "false"
+      build_fuchsia: "false"
+      build_android_debug: "false"
+      build_android_aot: "false"
+      build_android_vulkan: "false"
+      build_ios: "false"
+      build_windows_uwp: "false"
+      build_android_jit_release: "false"
+      gcs_goldens_bucket: ""
+      ios_debug: "false"
+      ios_profile: "false"
+      ios_release: "false"
+      no_bitcode: "false"
       caches: >-
         [
           {"name":"flutter_cocoapods","path":"cocoapods"},
@@ -39,10 +66,25 @@ platform_properties:
         [
           {"dependency": "open_jdk", "version": "version:1.8.0u202-b08"}
         ]
+      device_type: none
+      mac_model: "Macmini8,1"
       os: Mac-10.15
       xcode: 12a7209 # xcode 12
   windows:
     properties:
+      build_host: "false"
+      build_fuchsia: "false"
+      build_android_debug: "false"
+      build_android_aot: "false"
+      build_android_vulkan: "false"
+      build_ios: "false"
+      build_windows_uwp: "false"
+      build_android_jit_release: "false"
+      gcs_goldens_bucket: ""
+      ios_debug: "false"
+      ios_profile: "false"
+      ios_release: "false"
+      no_bitcode: "false"
       caches: >-
         [
           {"name":"builder_win_engine","path":"builder"},
@@ -53,6 +95,7 @@ platform_properties:
         [
           {"dependency": "open_jdk", "version": "version:1.8.0u202-b08"}
         ]
+      device_type: none
       os: Windows-10
 
 targets: