Bump kotlin-stdlib-jdk8 from 1.6.21 to 1.7.0 (#304)

Bumps [kotlin-stdlib-jdk8](https://github.com/JetBrains/kotlin) from 1.6.21 to 1.7.0.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/commits)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-stdlib-jdk8
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

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

app/build.gradle.kts

@@ -48,7 +48,7 @@ dependencies {
     implementation(fileTree(mapOf("include" to listOf("*.jar"), "dir" to "libs")))
 
     implementation("androidx.core:core-ktx:1.8.0")
-    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.21")
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.0")
 
     implementation("androidx.exifinterface:exifinterface:1.3.3")
     testImplementation("junit:junit:4.13.2")