[ISSUE #8955] Fix message buffer not release and dispatch thread exit in tiered storage

[lizhimins]

[ISSUE #8955] Fix message buffer not release and dispatch thread exit in tiered storage

Which Issue(s) This PR Fixes

Fixes #8955

Brief Description

How Did You Test This Change?

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 50.00000% with 28 lines in your changes missing coverage. Please review.

Project coverage is 47.60%. Comparing base (9202de3) to head (127e7aa).

Files with missing lines	Patch %	Lines
...q/tieredstore/core/MessageStoreDispatcherImpl.java	21.73%	16 Missing and 2 partials :warning:
...che/rocketmq/tieredstore/index/IndexStoreFile.java	69.69%	5 Missing and 5 partials :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #8965 +/- ## ============================================= - Coverage 47.71% 47.60% -0.12% + Complexity 11771 11748 -23 ============================================= Files 1304 1304 Lines 91118 91129 +11 Branches 11692 11694 +2 ============================================= - Hits 43477 43382 -95 - Misses 42279 42368 +89 - Partials 5362 5379 +17 ```

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