chore: drop python 3.9 (#108)

Now requires the python version to be 3.10-3.13.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Chores**
* Minimum Python requirement raised to 3.10; package metadata updated
accordingly.
  * Python 3.13 added to supported versions.

* **Tests**
  * CI test matrix updated to run against Python 3.10–3.13.

* **Documentation**
* Installation/prerequisites updated to reflect new supported Python
range (3.10–3.13).
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: 2 people

.github/workflows/unit_test.yaml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.9', '3.10', '3.11', '3.12']
+        python: ['3.10', '3.11', '3.12', '3.13']
 
     steps:
       - name: Checkout

docs/start/installation.mdx

@@ -3,7 +3,7 @@
 ## Prerequisites
 
 - OS: Linux
-- Python: 3.9, 3.10, 3.11, 3.12
+- Python: 3.10, 3.11, 3.12, 3.13
 
 ## Python Package (WIP)
 

pyproject.toml

@@ -7,7 +7,7 @@ name = "flashinfer-bench"
 dynamic = ["version"]
 description = "FlashInfer-Bench - AI for AI Infrastructure for Accelerating AI Deployment"
 readme = "README.md"
-requires-python = ">=3.9,<4.0"
+requires-python = ">=3.10,<4.0"
 license = { text = "Apache License 2.0" }
 authors = [{ name = "FlashInfer team" }]
 keywords = ["deep-learning", "inference", "benchmark", "flashinfer", "gpu"]
@@ -17,7 +17,6 @@ classifiers = [
   "Intended Audience :: Science/Research",
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
@@ -57,7 +56,7 @@ include = ["flashinfer_bench*"]
 
 [tool.black]
 line-length = 100
-target-version = ["py38", "py39", "py310", "py311"]
+target-version = ["py310", "py311", "py312", "py313"]
 skip-magic-trailing-comma = true
 
 [tool.isort]
@@ -67,7 +66,7 @@ line_length = 100
 [tool.ruff]
 include = ["flashinfer_bench/**/*.py", "tests/**/*.py"]
 line-length = 100
-target-version = "py38"
+target-version = "py310"
 
 [tool.ruff.lint]
 # Never enforce `E501` (line length violations).
@@ -81,7 +80,7 @@ select = ["C", "E", "F", "W", "TID252"]
 "flashinfer_bench/compile/builders/triton_builder.py" = ["F401"]
 
 [tool.mypy]
-python_version = "3.8"
+python_version = "3.10"
 ignore_missing_imports = true
 strict = true