chore: Fix dependency issue (#211)

It replaces the version catalog references for JUnit with direct
dependency declarations and removes the corresponding entries from the
`libs.versions.toml` file to avoid issues with the Android app
lib.versions file

Author: agrognetti

sdk/@launchdarkly/observability-android/gradle/libs.versions.toml

@@ -1,13 +1,5 @@
 # This file was generated by the Gradle 'init' task.
 # https://docs.gradle.org/current/userguide/platforms.html#sub::toml-dependencies-format
 
-[versions]
-junit-jupiter = "5.13.4"
-
-[libraries]
-junit-bom = { module = "org.junit:junit-bom", version.ref = "junit-jupiter" }
-junit-jupiter = { module = "org.junit.jupiter:junit-jupiter" }
-junit-platform-launcher = { module = "org.junit.platform:junit-platform-launcher" }
-
 [plugins]
 kotlin-android = { id = "org.jetbrains.kotlin.android", version = "2.1.20" }

sdk/@launchdarkly/observability-android/lib/build.gradle.kts

@@ -39,9 +39,9 @@ dependencies {
     implementation("io.opentelemetry.android.instrumentation:crash:0.11.0-alpha")
 
     // Use JUnit Jupiter for testing.
-    testImplementation(platform(libs.junit.bom))
-    testImplementation(libs.junit.jupiter)
-    testRuntimeOnly(libs.junit.platform.launcher)
+    testImplementation(platform("org.junit:junit-bom:5.13.4"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 
     // MockK for mocking in Kotlin tests
     testImplementation("io.mockk:mockk:1.14.5")