[v3] Fix Windows build error with go-webview2 v1.0.22 (#4645)

* Fix Windows build error with go-webview2 v1.0.22

Fixes #4513

The go-webview2 library changed the MessageCallback signature in v1.0.22
from `func(string)` to `func(message string, sender *ICoreWebView2, args *ICoreWebView2WebMessageReceivedEventArgs)`.

This caused a build error for users:
```
cannot use w.processMessage (value of type func(message string)) as
func(message string, sender *ICoreWebView2, args *ICoreWebView2WebMessageReceivedEventArgs)
value in assignment
```

Changes:
- Updated processMessage signature to match go-webview2 v1.0.22
- Upgraded go-webview2 dependency from v1.0.21 to v1.0.22

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

* Fix Windows build error with go-webview2 v1.0.22

Fixes #4513

The go-webview2 library changed the MessageCallback signature in v1.0.22
from `func(string)` to `func(message string, sender *ICoreWebView2, args *ICoreWebView2WebMessageReceivedEventArgs)`.

This caused a build error for users:
```
cannot use w.processMessage (value of type func(message string)) as
func(message string, sender *ICoreWebView2, args *ICoreWebView2WebMessageReceivedEventArgs)
value in assignment
```

Changes:
- Updated processMessage signature to match go-webview2 v1.0.22
- Upgraded go-webview2 dependency from v1.0.21 to v1.0.22

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

---------

Co-authored-by: Claude <[email protected]>

Author: leaanthony

v3/UNRELEASED_CHANGELOG.md

@@ -23,6 +23,8 @@ After processing, the content will be moved to the main changelog and this file
 
 ## Fixed
 <!-- Bug fixes -->
+- Fix Linux appimage appicon variable in Linux taskfile [PR #4644](https://github.com/wailsapp/wails/pull/4644)
+- Fix Windows build error caused by go-webview2 v1.0.22 signature change (#4513, #4645)
 
 ## Deprecated
 <!-- Soon-to-be removed features -->

v3/go.mod

@@ -34,7 +34,7 @@ require (
 	github.com/samber/lo v1.49.1
 	github.com/stretchr/testify v1.10.0
 	github.com/tc-hib/winres v0.3.1
-	github.com/wailsapp/go-webview2 v1.0.21
+	github.com/wailsapp/go-webview2 v1.0.22
 	github.com/wailsapp/mimetype v1.4.1
 	github.com/wailsapp/task/v3 v3.40.1-patched3
 	golang.org/x/sys v0.31.0

v3/go.sum

@@ -323,8 +323,8 @@ github.com/tc-hib/winres v0.3.1 h1:CwRjEGrKdbi5CvZ4ID+iyVhgyfatxFoizjPhzez9Io4=
 github.com/tc-hib/winres v0.3.1/go.mod h1:C/JaNhH3KBvhNKVbvdlDWkbMDO9H4fKKDaN7/07SSuk=
 github.com/ulikunitz/xz v0.5.12 h1:37Nm15o69RwBkXM0J6A5OlE67RZTfzUxTj8fB3dfcsc=
 github.com/ulikunitz/xz v0.5.12/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oWt/14=
-github.com/wailsapp/go-webview2 v1.0.21 h1:k3dtoZU4KCoN/AEIbWiPln3P2661GtA2oEgA2Pb+maA=
-github.com/wailsapp/go-webview2 v1.0.21/go.mod h1:qJmWAmAmaniuKGZPWwne+uor3AHMB5PFhqiK0Bbj8kc=
+github.com/wailsapp/go-webview2 v1.0.22 h1:YT61F5lj+GGaat5OB96Aa3b4QA+mybD0Ggq6NZijQ58=
+github.com/wailsapp/go-webview2 v1.0.22/go.mod h1:qJmWAmAmaniuKGZPWwne+uor3AHMB5PFhqiK0Bbj8kc=
 github.com/wailsapp/mimetype v1.4.1 h1:pQN9ycO7uo4vsUUuPeHEYoUkLVkaRntMnHJxVwYhwHs=
 github.com/wailsapp/mimetype v1.4.1/go.mod h1:9aV5k31bBOv5z6u+QP8TltzvNGJPmNJD4XlAL3U+j3o=
 github.com/wailsapp/task/v3 v3.40.1-patched3 h1:i6O1WNdSur9CGaiMDIYGjsmj/qS4465zqv+WEs6sPRs=

v3/pkg/application/webview_window_windows.go

@@ -1801,7 +1801,7 @@ func (w *windowsWebviewWindow) isAlwaysOnTop() bool {
 
 // processMessage is given a message sent from JS via the postMessage API
 // We put it on the global window message buffer to be processed centrally
-func (w *windowsWebviewWindow) processMessage(message string) {
+func (w *windowsWebviewWindow) processMessage(message string, sender *edge.ICoreWebView2, args *edge.ICoreWebView2WebMessageReceivedEventArgs) {
 	// We send all messages to the centralised window message buffer
 	windowMessageBuffer <- &windowMessage{
 		windowId: w.parent.id,