Refleak when some "internal modules" are imported multiple times.

[Eclips4]

Originally taken from #107577.

import sys
import importlib

def foo():
    name = "_socket"
    importlib.import_module(name)
    sys.modules.pop(name)


for _ in range(4):
    foo()

./python.exe -X showrefcount example.py
[1025 refs, 653 blocks]

Same with _decimal.

### Tasks
- [ ] https://github.com/python/cpython/pull/108241

[Eclips4]

сс @kumaraditya303

[Eclips4]

Related: #108240

[vstinner]

I close this issue as a duplicate of issue #108240 which more complete.