Bump org.hamcrest:hamcrest from 2.2 to 3.0

Bumps [org.hamcrest:hamcrest](https://github.com/hamcrest/JavaHamcrest) from 2.2 to 3.0.
- [Release notes](https://github.com/hamcrest/JavaHamcrest/releases)
- [Changelog](https://github.com/hamcrest/JavaHamcrest/blob/master/CHANGES.md)
- [Commits](hamcrest/JavaHamcrest@v2.2...v3.0)

---
updated-dependencies:
- dependency-name: org.hamcrest:hamcrest
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

app/build.gradle

@@ -208,8 +208,8 @@ dependencies {
     // mock server for backend
     androidTestImplementation('com.squareup.okhttp3:mockwebserver:4.12.0')
     // Optional -- Hamcrest library
-    androidTestImplementation("org.hamcrest:hamcrest:2.2")
-    androidTestImplementation("org.hamcrest:hamcrest-library:2.2")
+    androidTestImplementation("org.hamcrest:hamcrest:3.0")
+    androidTestImplementation("org.hamcrest:hamcrest-library:3.0")
     androidTestImplementation("junit:junit:4.13.2")
 
     androidTestImplementation("androidx.test.uiautomator:uiautomator:2.3.0")