…59920)

### What problem does this PR solve?
When `BaseBetaRowsetWriter` is destructed(this may happen when the load
is canceled) before the execution of the task submitted to thread pool,
the task may encounter coredump due to use after free.
```
(gdb) bt
#0  __GI___pthread_sigmask (how=2, newmask=<optimized out>, oldmask=0x0) at ./nptl/pthread_sigmask.c:43
#1  0x00007fa1d0c1171e in PosixSignals::chained_handler(int, siginfo*, void*) [clone .part.0] () from /usr/lib/jvm/java-17-openjdk-amd64/lib/server/libjvm.so
#2  0x00007fa1d0c12206 in JVM_handle_linux_signal () from /usr/lib/jvm/java-17-openjdk-amd64/lib/server/libjvm.so
#3  <signal handler called>
#4  doris::TUniqueId::TUniqueId (this=0x7f99955f2208, other51=...) at /home/zcp/repo_center/doris_branch-4.0/doris/gensrc/build/gen_cpp/Types_types.cpp:2571
#5  0x00005653d14008ca in doris::AttachTask::init (rc=..., this=<optimized out>) at /home/zcp/repo_center/doris_branch-4.0/doris/be/src/runtime/thread_context.cpp:29
#6  doris::AttachTask::AttachTask (this=<optimized out>, rc=...) at /home/zcp/repo_center/doris_branch-4.0/doris/be/src/runtime/thread_context.cpp:34
#7  0x00005653d0d05087 in doris::CalcDeleteBitmapToken::submit_func<doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0>(doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0&&)::{lambda()#1}::operator()() const (this=0x7f9cdf302500)
    at /home/zcp/repo_center/doris_branch-4.0/doris/be/src/olap/calc_delete_bitmap_executor.h:74
#8  std::__invoke_impl<void, doris::CalcDeleteBitmapToken::submit_func<doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0>(doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0&&)::{lambda()#1}&>(std::__invoke_other, doris::CalcDeleteBitmapToken::submit_func<doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0>(doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0&&)::{lambda()#1}&) (__f=...)
    at /usr/local/ldb-toolchain-v0.26/bin/../lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15/bits/invoke.h:63
#9  std::__invoke_r<void, doris::CalcDeleteBitmapToken::submit_func<doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0>(doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0&&)::{lambda()#1}&>(doris::CalcDeleteBitmapToken::submit_func<doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0>(doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0&&)::{lambda()#1}&) (__fn=...) at /usr/local/ldb-toolchain-v0.26/bin/../lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15/bits/invoke.h:113
#10 std::_Function_handler<void (), doris::CalcDeleteBitmapToken::submit_func<doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0>(doris::BaseBetaRowsetWriter::_generate_delete_bitmap(int)::$_0&&)::{lambda()#1}>::_M_invoke(std::_Any_data const&) (
    __functor=...) at /usr/local/ldb-toolchain-v0.26/bin/../lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15/bits/std_function.h:292
#11 0x00005653d16392e5 in doris::ThreadPool::dispatch_thread (this=0x7fa120d9af00) at /home/zcp/repo_center/doris_branch-4.0/doris/be/src/util/threadpool.cpp:616
#12 0x00005653d162e38c in std::function<void ()>::operator()() const (this=0x7f99955f2208) at /usr/local/ldb-toolchain-v0.26/bin/../lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15/bits/std_function.h:593
#13 doris::Thread::supervise_thread (arg=0x7fa0c0049110) at /home/zcp/repo_center/doris_branch-4.0/doris/be/src/util/thread.cpp:460
#14 0x00007fa1cfcacac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#15 0x00007fa1cfd3e850 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
```

### Release note

None

### Check List (For Author)

- Test <!-- At least one of them must be included. -->
    - [ ] Regression test
    - [ ] Unit Test
    - [ ] Manual test (add detailed scripts or steps below)
    - [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
        - [ ] Previous test can cover this change.
        - [ ] No code files have been changed.
        - [ ] Other reason <!-- Add your reason?  -->

- Behavior changed:
    - [ ] No.
    - [ ] Yes. <!-- Explain the behavior change -->

- Does this need documentation?
    - [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
apache/doris-website#1214 -->

### Check List (For Reviewer who merge this PR)

- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
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should merge into -->