[image_picker]: Bump androidx.activity:activity

Bumps androidx.activity:activity from 1.7.2 to 1.8.2.

---
updated-dependencies:
- dependency-name: androidx.activity:activity
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

packages/image_picker/image_picker_android/android/build.gradle

@@ -41,7 +41,7 @@ android {
         implementation 'androidx.core:core:1.10.1'
         implementation 'androidx.annotation:annotation:1.7.0'
         implementation 'androidx.exifinterface:exifinterface:1.3.6'
-        implementation 'androidx.activity:activity:1.7.2'
+        implementation 'androidx.activity:activity:1.8.2'
         // org.jetbrains.kotlin:kotlin-bom artifact purpose is to align kotlin stdlib and related code versions.
         // See: https://youtrack.jetbrains.com/issue/KT-55297/kotlin-stdlib-should-declare-constraints-on-kotlin-stdlib-jdk8-and-kotlin-stdlib-jdk7
         implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.22"))