File ansible-variables.spec of Package failed_ansible-variables1

```spec
Name:           ansible-variables
Version:        0.8.1
Release:        1.1
Summary:        A plugin to manage variables in Ansible
License:        MIT
URL:            https://example.com/ansible-variables
Source0:        %{name}-%{version}.tar.gz

BuildRequires:  python3-devel
BuildRequires:  python3-pip
BuildRequires:  python3-setuptools
BuildRequires:  python3-wheel

%description
A plugin to manage variables in Ansible.

%prep
%setup -q

%build
# Patch the Python version constraint to include Python 3.13
sed -i 's/<3.13,>=3.8/>=3.8/' pyproject.toml
%pyproject_wheel

%install
%pyproject_install

%files
%license LICENSE
%doc README.md
%{python3_sitelib}/ansible_variables/
%{python3_sitelib}/ansible_variables-*.dist-info/

%changelog
* Fri Aug 08 2025 Your Name <your.email@example.com> - 0.8.1-1.1
- Initial package for ansible-variables
```

---

### Explanation of Changes
1. **Added `sed` Command in `%build` Section**:
   - The `sed` command modifies the `pyproject.toml` file to adjust the Python version constraint from `<3.13,>=3.8` to `>=3.8`. This ensures compatibility with Python 3.13.
   - The `sed` command replaces the string `<3.13,>=3.8` with `>=3.8`.

2. **Minimal Changes**:
   - Only the necessary modification was made to the `.spec` file to address the Python version constraint issue.

---

This fix should resolve the build failure by allowing the package to be built with Python 3.13. If additional issues arise, further debugging may be required.