fix(test): Fix flaky background-foreground replay test

Increase sessionIntervalMillis from 2ms to 500ms so the timer task
from the first onBackground() doesn't fire before cancelTask() in
the second onForeground() can cancel it. With 2ms the timer could
race and call replayController.stop() twice.

Co-Authored-By: Claude <noreply@anthropic.com>

Author: adinauer

sentry-android-core/src/test/java/io/sentry/android/core/LifecycleWatcherTest.kt

@@ -282,7 +282,8 @@ class LifecycleWatcherTest {
   @Test
   fun `background-foreground replay`() {
     whenever(fixture.dateProvider.currentTimeMillis).thenReturn(1L)
-    val watcher = fixture.getSUT(sessionIntervalMillis = 2L, enableAppLifecycleBreadcrumbs = false)
+    val watcher =
+      fixture.getSUT(sessionIntervalMillis = 500L, enableAppLifecycleBreadcrumbs = false)
     watcher.onForeground()
     verify(fixture.replayController).start()