[Re-land] Bump legacy all_packages project AGP version to 7.0.0, Gradle version to 7.0.2 (#6742)

Re-lands #6591.

The only difference between that PR and this one is that this PR bumps the required Flutter version of Android facing packages to the latest Flutter stable version (3.22) that weren't doing so already. That is because the stable version includes the warning about using older versions of Android dependencies.

Author: camsim99

.ci/legacy_project/README.md

@@ -42,3 +42,11 @@ and then deleting everything but `android/` from it:
 - Updates `gradle-wrapper.properties` from `6.7` to `6.7.1`, to add
   support for the Kotlin gradle plugin. If a user runs into this
   error, the error message is clear on how to upgrade.
+- Modifies `build.gradle` to upgrade the Android Gradle Plugin (AGP)
+  from version 4.1.0 to 7.0.0. If a user runs into an error with
+  the AGP version, the warning is clear on how to upgrade
+  the version to one that we support.
+- Modifies `gradle-wrapper.properties` to upgrade the Gradle version
+  from 6.7.1 to 7.0.2. If a user runs into an error with the Gradle
+  version, the warning is clear on how to upgrade the version to
+  one that we support.

.ci/legacy_project/all_packages/android/build.gradle

@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath 'com.android.tools.build:gradle:7.0.0'
     }
 }
 

.ci/legacy_project/all_packages/android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-all.zip

packages/camera/camera_android_camerax/CHANGELOG.md

@@ -1,3 +1,7 @@
+## NEXT
+
+* Updates minimum supported SDK version to Flutter 3.22/Dart 3.4.
+
 ## 0.6.5+2
 
 * Update to latest stable camerax `1.3.3`.

packages/camera/camera_android_camerax/pubspec.yaml

@@ -5,8 +5,8 @@ issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+
 version: 0.6.5+2
 
 environment:
-  sdk: ^3.2.0
-  flutter: ">=3.16.0"
+  sdk: ^3.4.0
+  flutter: ">=3.22.0"
 
 flutter:
   plugin:

packages/file_selector/file_selector_android/CHANGELOG.md

@@ -1,3 +1,7 @@
+## NEXT
+
+* Updates minimum supported SDK version to Flutter 3.22/Dart 3.4.
+
 ## 0.5.1+2
 
 * Bumps androidx.annotation:annotation from 1.7.1 to 1.8.0.

packages/file_selector/file_selector_android/pubspec.yaml

@@ -5,8 +5,8 @@ issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+
 version: 0.5.1+2
 
 environment:
-  sdk: ^3.2.0
-  flutter: ">=3.16.0"
+  sdk: ^3.4.0
+  flutter: ">=3.22.0"
 
 flutter:
   plugin: