make asyncio optional

pyproject.toml

@@ -44,7 +44,6 @@ dependencies = [
     "pygls>=1.3.1",
     "codeflash-benchmark",
     "filelock",
-    "pytest-asyncio>=1.2.0",
 ]
 
 [project.urls]
@@ -53,8 +52,14 @@ Homepage = "https://codeflash.ai"
 [project.scripts]
 codeflash = "codeflash.main:main"
 
+[project.optional-dependencies]
+asyncio = [
+    "pytest-asyncio>=1.2.0",
+]
+
 [dependency-groups]
 dev = [
+    {include-group = "asyncio"},
     "ipython>=8.12.0",
     "mypy>=1.13",
     "ruff>=0.7.0",
@@ -77,6 +82,9 @@ dev = [
     "uv>=0.6.2",
     "pre-commit>=4.2.0,<5",
 ]
+asyncio = [
+    "pytest-asyncio>=1.2.0",
+]
 
 [tool.hatch.build.targets.sdist]
 include = ["codeflash"]