[espresso] updates build files to use JVM 17 (flutter#10162)

Update minimum flutter version to 3.35 to force a minimum AGP version to something that requires java 17.
part of flutter#176027

## Pre-Review Checklist

Author: reidbaker

packages/espresso/CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.4.0+15
+
+* Updates Java compatibility version to 17.
+* Updates minimum supported SDK version to Flutter 3.35/Dart 3.9.
+
 ## 0.4.0+14
 
 * Bumps okhttp, junit, and truth dependencies.

packages/espresso/android/build.gradle

@@ -31,8 +31,8 @@ android {
     }
 
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_11
-        targetCompatibility = JavaVersion.VERSION_11
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
     }
 
     lintOptions {

packages/espresso/pubspec.yaml

@@ -3,11 +3,11 @@ description: Java classes for testing Flutter apps using Espresso.
   Allows driving Flutter widgets from a native Espresso test.
 repository: https://github.com/flutter/packages/tree/main/packages/espresso
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+espresso%22
-version: 0.4.0+14
+version: 0.4.0+15
 
 environment:
-  sdk: ^3.7.0
-  flutter: ">=3.29.0"
+  sdk: ^3.9.0
+  flutter: ">=3.35.0"
 
 flutter:
   plugin: