chore(deps): bump gradle from 7.0.2 to 7.0.3 (fossasia#2261)

Bumps gradle from 7.0.2 to 7.0.3.

---
updated-dependencies:
- dependency-name: com.android.tools.build:gradle
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -8,7 +8,7 @@ buildscript {
         maven { url "https://plugins.gradle.org/m2/" }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.0.2'
+        classpath 'com.android.tools.build:gradle:7.0.3'
         classpath "io.realm:realm-gradle-plugin:6.0.2"
         classpath "gradle.plugin.com.github.b3er.local.properties:local-properties-plugin:1.1"
         // NOTE: Do not place your application dependencies here; they belong