[ci] Increase timeouts for platform_tests (#7036)

`platform_tests` are our most time-consuming tests; 30 minutes isn't always enough to run them. Increase timeouts to 60 minutes so that we aren't getting timeouts from tests that are still running.

Also disables Windows `platform_tests` for stable in presubmit, matching other platforms.

Author: stuartmorgan-g

.ci.yaml

@@ -79,7 +79,7 @@ targets:
   # https://github.com/flutter/plugins/pull/5693#issuecomment-1126011089
   - name: Mac_x64 ios_platform_tests_1_of_4 master
     recipe: plugins/plugins
-    timeout: 30
+    timeout: 60
     properties:
       add_recipes_cq: "true"
       version_file: flutter_master.version
@@ -88,7 +88,7 @@ targets:
 
   - name: Mac_x64 ios_platform_tests_2_of_4 master
     recipe: plugins/plugins
-    timeout: 30
+    timeout: 60
     properties:
       add_recipes_cq: "true"
       version_file: flutter_master.version
@@ -97,7 +97,7 @@ targets:
 
   - name: Mac_x64 ios_platform_tests_3_of_4 master
     recipe: plugins/plugins
-    timeout: 30
+    timeout: 60
     properties:
       add_recipes_cq: "true"
       version_file: flutter_master.version
@@ -106,7 +106,7 @@ targets:
 
   - name: Mac_x64 ios_platform_tests_4_of_4 master
     recipe: plugins/plugins
-    timeout: 30
+    timeout: 60
     properties:
       add_recipes_cq: "true"
       version_file: flutter_master.version
@@ -117,7 +117,7 @@ targets:
   - name: Mac_x64 ios_platform_tests_1_of_4 stable
     recipe: plugins/plugins
     presubmit: false
-    timeout: 30
+    timeout: 60
     properties:
       channel: stable
       add_recipes_cq: "true"
@@ -128,7 +128,7 @@ targets:
   - name: Mac_x64 ios_platform_tests_2_of_4 stable
     recipe: plugins/plugins
     presubmit: false
-    timeout: 30
+    timeout: 60
     properties:
       channel: stable
       add_recipes_cq: "true"
@@ -139,7 +139,7 @@ targets:
   - name: Mac_x64 ios_platform_tests_3_of_4 stable
     recipe: plugins/plugins
     presubmit: false
-    timeout: 30
+    timeout: 60
     properties:
       channel: stable
       add_recipes_cq: "true"
@@ -150,7 +150,7 @@ targets:
   - name: Mac_x64 ios_platform_tests_4_of_4 stable
     recipe: plugins/plugins
     presubmit: false
-    timeout: 30
+    timeout: 60
     properties:
       channel: stable
       add_recipes_cq: "true"
@@ -160,7 +160,7 @@ targets:
 
   - name: Windows win32-platform_tests master
     recipe: plugins/plugins
-    timeout: 30
+    timeout: 60
     properties:
       add_recipes_cq: "true"
       target_file: windows_build_and_platform_tests.yaml
@@ -173,7 +173,8 @@ targets:
 
   - name: Windows win32-platform_tests stable
     recipe: plugins/plugins
-    timeout: 30
+    presubmit: false
+    timeout: 60
     properties:
       add_recipes_cq: "true"
       target_file: windows_build_and_platform_tests.yaml