examples: force Winit to use in-tree android-activity

This fixes build errors about not specifying either of the
"native-activity" or "game-activity" features.

The issue came about because the in-tree examples want to
build against the in-tree version of android-activity located
with a relative `path = ` but these particular examples
depend on Winit which would resolve a second implementation
of android-activity, via a github url - where Cargo will treat
them as completely different crates.

examples/agdk-egui/Cargo.toml

@@ -45,6 +45,11 @@ env_logger = "0.9"
 android_logger = "0.11.0"
 android-activity = { path="../../android-activity", features = [ "game-activity" ] }
 
+# Since Winit also depends on android-activity (via a github url) we need to
+# make sure we only resolve a single implementation.
+[patch.'https://github.com/rib/android-activity']
+android-activity = { path="../../android-activity", features = [ "game-activity" ] }
+
 [features]
 default = []
 desktop = []

examples/agdk-winit-wgpu/Cargo.toml

@@ -19,6 +19,11 @@ env_logger = "0.9"
 android_logger = "0.11.0"
 android-activity = { path="../../android-activity", features = [ "game-activity" ] }
 
+# Since Winit also depends on android-activity (via a github url) we need to
+# make sure we only resolve a single implementation.
+[patch.'https://github.com/rib/android-activity']
+android-activity = { path="../../android-activity", features = [ "game-activity" ] }
+
 [features]
 default = []
 desktop = []

examples/na-winit-wgpu/Cargo.toml

@@ -19,6 +19,11 @@ env_logger = "0.9"
 android_logger = "0.11.0"
 android-activity = { path="../../android-activity", features = [ "native-activity" ] }
 
+# Since Winit also depends on android-activity (via a github url) we need to
+# make sure we only resolve a single implementation.
+[patch.'https://github.com/rib/android-activity']
+android-activity = { path="../../android-activity", features = [ "native-activity" ] }
+
 [features]
 default = []
 desktop = []