Add Python 3.13 for PR checks in GHA

Signed-off-by: Gaurav Talreja <gtalreja@redhat.com>

Author: Gauravtalreja1

.github/workflows/merge_to_master.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10', '3.11', '3.12']
+        python-version: ['3.10', '3.11', '3.12', '3.13']
     steps:
       - name: Checkout Nailgun
         uses: actions/checkout@v4

.github/workflows/pull_requests.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10', '3.11', '3.12']
+        python-version: ['3.10', '3.11', '3.12', '3.13']
     steps:
       - name: Checkout Nailgun
         uses: actions/checkout@v4

setup.py

@@ -42,6 +42,8 @@
         'License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
+        'Programming Language :: Python :: 3.13',
     ],
     packages=find_packages(exclude=['docs', 'tests']),
     install_requires=REQUIREMENTS,