Upgraded to Flutter 3.0.2 (#23)

Author: FeodorFitsner

.appveyor.yml

@@ -131,7 +131,7 @@ for:
 
     install:
       - brew install cocoapods
-      - curl https://storage.googleapis.com/flutter_infra_release/releases/stable/macos/flutter_macos_3.0.1-stable.zip -o flutter_macos_stable.zip
+      - curl https://storage.googleapis.com/flutter_infra_release/releases/stable/macos/flutter_macos_3.0.2-stable.zip -o flutter_macos_stable.zip
       - unzip -qq flutter_macos_stable.zip
       - export PATH="$PATH:`pwd`/flutter/bin"
       - flutter --version
@@ -167,7 +167,7 @@ for:
 
     install:
       - export LANG=en_US.UTF-8
-      - curl https://storage.googleapis.com/flutter_infra_release/releases/stable/macos/flutter_macos_3.0.1-stable.zip -o flutter_macos_stable.zip
+      - curl https://storage.googleapis.com/flutter_infra_release/releases/stable/macos/flutter_macos_3.0.2-stable.zip -o flutter_macos_stable.zip
       - unzip -qq flutter_macos_stable.zip
       - export PATH="$PATH:`pwd`/flutter/bin"
       - flutter --version

ci/install_flutter.ps1

@@ -1,7 +1,7 @@
 $distPath = "$env:TEMP\flutter_windows_stable.zip"
 
 Write-Host "Downloading Flutter SDK..."
-(New-Object Net.WebClient).DownloadFile("https://storage.googleapis.com/flutter_infra_release/releases/stable/windows/flutter_windows_3.0.1-stable.zip", $distPath)
+(New-Object Net.WebClient).DownloadFile("https://storage.googleapis.com/flutter_infra_release/releases/stable/windows/flutter_windows_3.0.2-stable.zip", $distPath)
 
 Write-Host "Unpacking Flutter SDK..."
 7z x $distPath -o"$env:SystemDrive\" | Out-Null