[flutter_tools] increase windows tool_integration_tests shard (#95917)

diff --git a/.ci.yaml b/.ci.yaml
index 372855d..71c3d60 100755
--- a/.ci.yaml
+++ b/.ci.yaml
@@ -4021,6 +4021,156 @@
       - bin/**
       - .ci.yaml
 
+  - name: Windows tool_integration_tests_1_6
+    bringup: true # TODO(fujino): https://github.com/flutter/flutter/issues/96544
+    recipe: flutter/flutter_drone
+    timeout: 60
+    properties:
+      add_recipes_cq: "true"
+      dependencies: >-
+        [
+          {"dependency": "android_sdk", "version": "version:29.0"},
+          {"dependency": "chrome_and_driver", "version": "version:84"},
+          {"dependency": "open_jdk"},
+          {"dependency": "goldctl"},
+          {"dependency": "vs_build", "version": "version:vs2019"}
+        ]
+      shard: tool_integration_tests
+      subshard: "1_6"
+      tags: >
+        ["framework","hostonly","shard"]
+    scheduler: luci
+    runIf:
+      - dev/**
+      - packages/flutter_tools/**
+      - bin/**
+      - .ci.yaml
+
+  - name: Windows tool_integration_tests_2_6
+    bringup: true # TODO(fujino): https://github.com/flutter/flutter/issues/96544
+    recipe: flutter/flutter_drone
+    timeout: 60
+    properties:
+      add_recipes_cq: "true"
+      dependencies: >-
+        [
+          {"dependency": "android_sdk", "version": "version:29.0"},
+          {"dependency": "chrome_and_driver", "version": "version:84"},
+          {"dependency": "open_jdk"},
+          {"dependency": "goldctl"},
+          {"dependency": "vs_build", "version": "version:vs2019"}
+        ]
+      shard: tool_integration_tests
+      subshard: "2_6"
+      tags: >
+        ["framework","hostonly","shard"]
+    scheduler: luci
+    runIf:
+      - dev/**
+      - packages/flutter_tools/**
+      - bin/**
+      - .ci.yaml
+
+  - name: Windows tool_integration_tests_3_6
+    bringup: true # TODO(fujino): https://github.com/flutter/flutter/issues/96544
+    recipe: flutter/flutter_drone
+    timeout: 60
+    properties:
+      add_recipes_cq: "true"
+      dependencies: >-
+        [
+          {"dependency": "android_sdk", "version": "version:29.0"},
+          {"dependency": "chrome_and_driver", "version": "version:84"},
+          {"dependency": "open_jdk"},
+          {"dependency": "goldctl"},
+          {"dependency": "vs_build", "version": "version:vs2019"}
+        ]
+      shard: tool_integration_tests
+      subshard: "3_6"
+      tags: >
+        ["framework","hostonly","shard"]
+    scheduler: luci
+    runIf:
+      - dev/**
+      - packages/flutter_tools/**
+      - bin/**
+      - .ci.yaml
+
+  - name: Windows tool_integration_tests_4_6
+    bringup: true # TODO(fujino): https://github.com/flutter/flutter/issues/96544
+    recipe: flutter/flutter_drone
+    timeout: 60
+    properties:
+      add_recipes_cq: "true"
+      dependencies: >-
+        [
+          {"dependency": "android_sdk", "version": "version:29.0"},
+          {"dependency": "chrome_and_driver", "version": "version:84"},
+          {"dependency": "open_jdk"},
+          {"dependency": "goldctl"},
+          {"dependency": "vs_build", "version": "version:vs2019"}
+        ]
+      shard: tool_integration_tests
+      subshard: "4_6"
+      tags: >
+        ["framework","hostonly","shard"]
+    scheduler: luci
+    runIf:
+      - dev/**
+      - packages/flutter_tools/**
+      - bin/**
+      - .ci.yaml
+
+  - name: Windows tool_integration_tests_5_6
+    bringup: true # TODO(fujino): https://github.com/flutter/flutter/issues/96544
+    recipe: flutter/flutter_drone
+    timeout: 60
+    properties:
+      add_recipes_cq: "true"
+      dependencies: >-
+        [
+          {"dependency": "android_sdk", "version": "version:29.0"},
+          {"dependency": "chrome_and_driver", "version": "version:84"},
+          {"dependency": "open_jdk"},
+          {"dependency": "goldctl"},
+          {"dependency": "vs_build", "version": "version:vs2019"}
+        ]
+      shard: tool_integration_tests
+      subshard: "5_6"
+      tags: >
+        ["framework","hostonly","shard"]
+    scheduler: luci
+    runIf:
+      - dev/**
+      - packages/flutter_tools/**
+      - bin/**
+      - .ci.yaml
+
+  - name: Windows tool_integration_tests_6_6
+    bringup: true # TODO(fujino): https://github.com/flutter/flutter/issues/96544
+    recipe: flutter/flutter_drone
+    timeout: 60
+    properties:
+      add_recipes_cq: "true"
+      dependencies: >-
+        [
+          {"dependency": "android_sdk", "version": "version:29.0"},
+          {"dependency": "chrome_and_driver", "version": "version:84"},
+          {"dependency": "open_jdk"},
+          {"dependency": "goldctl"},
+          {"dependency": "vs_build", "version": "version:vs2019"}
+        ]
+      shard: tool_integration_tests
+      subshard: "6_6"
+      tags: >
+        ["framework","hostonly","shard"]
+    scheduler: luci
+    runIf:
+      - dev/**
+      - packages/flutter_tools/**
+      - bin/**
+      - .ci.yaml
+
   - name: Windows tool_tests_commands
     recipe: flutter/flutter_drone
     timeout: 60