from __future__ import annotations ignored by typeguard

### Things to check first

- [X] I have searched the existing issues and didn't find my bug already reported there

- [X] I have checked that my bug is still present in the latest release

### Typeguard version

4.1.5

### Python version

3.11.0

### What happened?

When attempting to type-hint a parametrised pandas series, `typeguard` is failing for generic annotations.

In my MWE, I have a function which takes a float pandas series as an argument and returns a float:
```
def col_sum(x: pd.Series[float]) -> float:
return x.sum()
```
If I import this function after applying `install_import_hook()`, I get the following error:

```
> def col_sum(x: pd.Series[float]) -> float:
E TypeError: type 'Series' is not subscriptable
```

This error implies that the `pd.Series` is being imported from `pandas` as a type, rather than a generic type (i.e. from `pandas-stubs`).

This error occurs despite my script file having the `from __future__ import annotations` import statement (which should solve this problem).

For others with this issue, my current workaround is to create a type alias in my script file and use `if TYPE_CHECKING:`, but is very clunky:

```
from typing import TypeVar
T = TypeVar('T')
if TYPE_CHECKING:
pds[T] = pd.Series[T] | pd.Series[T]
else:
pds[T] = pd.Series | pd.Series
```

For context, I am running a test script using `pytest`. The tests pass under normal situations, but when I run `pytest --typeguard-package=MyPackage`, it is failing with the above error. I need to do this workaround in order to pass both `mypy` and `typeguard` testing as part of my current testing suite, based on the [hypermodern template](https://cookiecutter-hypermodern-python.readthedocs.io/). Mypy requires that the generic type `pd.Series` has a type parameter applied to it.

### How can we reproduce the bug?

I have created an MWE package with the following file structure:
```
├>.venv
│ └─...
├>src
│ └>MyPackage
│ └─__init__.py
├─main.py
├─main_tg.py
└─pyproject.toml
```

The `src/MyPackage/__init__.py` file contains:
```
from __future__ import annotations
import pandas as pd

def col_sum(x: pd.Series[float]) -> float:
return x.sum()
```

The `main.py` file contains:
```
from MyPackage import col_sum
from pandas import Series

col_sum(Series([1.0, 2.0, 3.0]))
```

The `main_tg.py` file contains:
```
from typeguard import install_import_hook
install_import_hook("MyPackage")
from MyPackage import col_sum
from pandas import Series

col_sum(Series([1.0, 2.0, 3.0]))
```

The `pyproject.toml` file contains:
```
[project]
name = "MyPackage"
version = "0.0.1"
description = "An MWE Package"
```

In the console (Windows), I have run:
```
py -m venv %cd%\.venv
.venv\Scripts\activate
pip install pandas
pip install typeguard
pip install -e .
```
Then running `py main.py` is fine, but `py main_tg.py` causes the error.