Allure report doesn't take in correct number of tests when using parametrized tests where tests parameters are duplicated

**Describe the Bug**
Allure report doesn't take in correct number of tests when using parametrized tests where tests parameters are duplicated.

**Steps to Reproduce**
1. Create a Python virtual env
2. Install allure-pytest
3. Create example tests to reproduce:

import pytest

@pytest.mark.parametrize(
'a, b',
[
(1, 1),
(1, 1)
]
)

def test_one(a, b):
assert a == b

4. Run tests using `pytest --clean-alluredir --alluredir=/tmp/allure-results`
5. Generate allure report `allure generate /tmp/allure-results/ --clean --output /tmp/allure-results/allure-report --single-file`
6. Open Allure report

**Expected Behaviour**
The report is generated without errors and the report shows 2 tests.

**Screenshots or Additional Context**
_Current version:_
pip freeze:
allure-pytest==2.14.2
allure-python-commons==2.14.2
attrs==25.3.0
iniconfig==2.1.0
packaging==25.0
pluggy==1.6.0
pytest==8.3.5

_Version 2.9.44 (expected working result):_
pip freeze:
allure-pytest==2.9.44
allure-python-commons==2.9.44
attrs==25.3.0
iniconfig==2.1.0
packaging==25.0
pluggy==1.6.0
pytest==8.3.5
six==1.17.0

**What Language are you using?**
Python 3.11.12

**What Framework/Allure Integration you are using?**
Pytest

**What version of Allure Integration you are using?**
2.34.0

**What version of Allure Report you are using?**
Latest

**Code of Conduct**
I agree to follow this project's Code of Conduct

Reproduisez le problème avec l’exemple pytest paramétré fourni et les commandes --clean-alluredir et allure generate indiquées. Comparez le rapport généré avec la version attendue et suivez la manière dont les paramètres dupliqués sont représentés dans les résultats. C’est terminé lorsque le rapport est généré sans erreurs et affiche 2 tests.

Rédigé par le modèle d'indexation à partir du texte de l'issue.