Fix leak in ReplayIntegration due to persisting executor not being shut down

Add the persistingExecutor argument to SessionCaptureStrategy and
BufferCaptureStrategy constructor calls in tests, and add changelog entry.

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

Author: romtsn

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased
+
+### Fixes
+
+- Fix leak in `ReplayIntegration` due to persisting executor not being shut down ([#5627](https://github.com/getsentry/sentry-java/pull/5627))
+
 ## 8.45.0
 
 ### Features

sentry-android-replay/src/test/java/io/sentry/android/replay/ReplayIntegrationTest.kt

@@ -754,6 +754,12 @@ class ReplayIntegrationTest {
                 null
               }
             },
+            mock {
+              whenever(mock.submit(any<Runnable>())).doAnswer {
+                (it.arguments[0] as Runnable).run()
+                null
+              }
+            },
           ) { _ ->
             fixture.replayCache
           }
@@ -1116,5 +1122,12 @@ class ReplayIntegrationTest {
             null
           }
         },
+      persistingExecutor =
+        mock {
+          whenever(mock.submit(any<Runnable>())).doAnswer {
+            (it.arguments[0] as Runnable).run()
+            null
+          }
+        },
     )
 }