Move clang tidy v2 build to prod. (flutter/engine#41985)

The mac clang tidy build has been running successfully on staging for several days. This is also moving the ios and host legacy clang tidy builds to staging.

[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style

engine/src/flutter/.ci.yaml

@@ -378,11 +378,23 @@ targets:
       config_name: mac_android_aot_engine
 
   - name: Mac mac_clang_tidy
-    bringup: true
     recipe: engine_v2/engine_v2
     timeout: 60
     properties:
       config_name: mac_clang_tidy
+    runIf:
+      - DEPS
+      - .ci.yaml
+      - tools/**
+      - ci/**
+      - "**.h"
+      - "**.c"
+      - "**.cc"
+      - "**.fbs"
+      - "**.frag"
+      - "**.vert"
+      - "**.m"
+      - "**.mm"
 
   - name: Mac mac_host_engine
     recipe: engine_v2/engine_v2
@@ -418,6 +430,7 @@ targets:
     timeout: 75
 
   - name: Mac Host clang-tidy
+    bringup: true
     recipe: engine/engine_lint
     properties:
       cpu: arm64
@@ -439,6 +452,7 @@ targets:
       - "**.mm"
 
   - name: Mac iOS clang-tidy
+    bringup: true
     recipe: engine/engine_lint
     properties:
       cpu: arm64