feat: ✨ Optional async dependencies

Author: remimd

pyproject.toml

@@ -9,7 +9,6 @@ bench = [
     "types-tabulate",
 ]
 dev = [
-    "anyio",
     "hatch",
     "mypy",
     "ruff",
@@ -48,6 +47,11 @@ classifiers = [
 ]
 dependencies = []
 
+[project.optional-dependencies]
+async = [
+    "anyio",
+]
+
 [project.urls]
 Repository = "https://github.com/100nm/python-injection"