Bump espresso-core from 3.3.0 to 3.4.0

Bumps espresso-core from 3.3.0 to 3.4.0.

---
updated-dependencies:
- dependency-name: androidx.test.espresso:espresso-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/dependencies.gradle

@@ -47,5 +47,5 @@ libraries.android = [
     compat: 'androidx.appcompat:appcompat:1.3.0',
     material: 'com.google.android.material:material:1.3.0',
     junit: 'androidx.test.ext:junit:1.1.2',
-    espresso: 'androidx.test.espresso:espresso-core:3.3.0',
+    espresso: 'androidx.test.espresso:espresso-core:3.4.0',
 ]