feat: add CI build and release workflows

This commit introduces two new GitHub Actions workflows:
- `build.yaml`: Configures a workflow for building the project on pushes to the `master` branch and on pull requests.
- `release.yaml`: Configures a workflow for releasing the project on tagged pushes, specifically for tags starting with 'v'. It builds the project, releases it using Gradle, and uploads the generated APK artifacts.

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-agp = "8.8.0"
+agp = "8.5.2"
 android-compileSdk = "34"
 android-minSdk = "24"
 android-targetSdk = "34"

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.10.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME