Bump com.github.AppIntro:AppIntro from 6.2.0 to 6.3.1

Bumps [com.github.AppIntro:AppIntro](https://github.com/AppIntro/AppIntro) from 6.2.0 to 6.3.1.
- [Release notes](https://github.com/AppIntro/AppIntro/releases)
- [Changelog](https://github.com/AppIntro/AppIntro/blob/main/CHANGELOG.md)
- [Commits](https://github.com/AppIntro/AppIntro/compare/6.2.0...6.3.1)

---
updated-dependencies:
- dependency-name: com.github.AppIntro:AppIntro
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

uhabits-android/build.gradle.kts

@@ -98,7 +98,7 @@ dependencies {
     androidTestImplementation("org.mockito.kotlin:mockito-kotlin:4.1.0")
     compileOnly("javax.annotation:jsr250-api:1.0")
     coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:2.0.3")
-    implementation("com.github.AppIntro:AppIntro:6.2.0")
+    implementation("com.github.AppIntro:AppIntro:6.3.1")
     implementation("com.google.code.findbugs:jsr305:3.0.2")
     implementation("com.google.dagger:dagger:$daggerVersion")
     implementation("com.google.guava:guava:32.1.2-android")