Fix tests

Author: markushi

sentry/src/test/java/io/sentry/OutboxSenderTest.kt

@@ -5,6 +5,7 @@ import io.sentry.hints.Retryable
 import io.sentry.protocol.SentryId
 import io.sentry.protocol.SentryTransaction
 import io.sentry.util.HintUtils
+import io.sentry.util.thread.NoOpMainThreadChecker
 import org.mockito.kotlin.any
 import org.mockito.kotlin.argWhere
 import org.mockito.kotlin.check
@@ -38,6 +39,7 @@ class OutboxSenderTest {
         init {
             whenever(options.dsn).thenReturn("https://[email protected]/proj")
             whenever(options.dateProvider).thenReturn(SentryNanotimeDateProvider())
+            whenever(options.mainThreadChecker).thenReturn(NoOpMainThreadChecker.getInstance())
             whenever(hub.options).thenReturn(this.options)
         }