Use shutdownNow() for replay executors in close() to avoid ANR

shutdown() calls awaitTermination() which blocks up to
shutdownTimeoutMillis. Since close() can run on the main thread
(via Sentry.close() from hybrid SDKs), this risks an ANR.
shutdownNow() is non-blocking and sufficient at teardown.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: romtsn

sentry-android-replay/src/main/java/io/sentry/android/replay/ReplayIntegration.kt

@@ -380,8 +380,8 @@ public class ReplayIntegration(
       recorder?.close()
       recorder = null
       rootViewsSpy.close()
-      replayExecutor.shutdown()
-      persistingExecutor.shutdown()
+      replayExecutor.gracefulShutdown()
+      persistingExecutor.gracefulShutdown()
       lifecycle.currentState = CLOSED
     }
   }

sentry-android-replay/src/main/java/io/sentry/android/replay/util/ReplayExecutorService.kt

@@ -57,6 +57,14 @@ internal class ReplayExecutorService(
       }
     }
   }
+
+  fun gracefulShutdown() {
+    synchronized(this) {
+      if (!isShutdown) {
+        delegate.shutdown()
+      }
+    }
+  }
 }
 
 internal class ReplayRunnable(val taskName: String, delegate: Runnable) : Runnable by delegate