ci: test the dependency floors on Python 3.15 (#60)

Author: lesnik512

.github/workflows/_checks.yml

@@ -61,6 +61,8 @@ jobs:
           - "3.13"
           - "3.14"
           - "3.14t"
+          - "3.15"
+          - "3.15t"
     steps:
       - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v8.2.0

pyproject.toml

@@ -19,9 +19,11 @@ classifiers = [
     "Topic :: Software Development :: Libraries",
 ]
 dependencies = [
-    # pytest-aiohttp 1.1 requires aiohttp 3.11, and aiohttp ships no cp314 wheel before 3.13.
+    # pytest-aiohttp 1.1 requires aiohttp 3.11, and aiohttp ships no cp314 wheel before 3.13 and no
+    # cp315 wheel before 3.14.4.
     "aiohttp>=3.11,<4; python_version < '3.14'",
-    "aiohttp>=3.13,<4; python_version >= '3.14'",
+    "aiohttp>=3.13,<4; python_version == '3.14'",
+    "aiohttp>=3.14.4,<4; python_version >= '3.15'",
     "modern-di>=4.2,<5",
 ]
 version = "0"