Adding missing pytest-env plugin

Author: blast-hardcheese

pyproject.toml

@@ -43,6 +43,7 @@ dev-dependencies = [
     "pytest>=7.4.0",
     "pytest-asyncio>=0.21.1",
     "pytest-cov>=4.1.0",
+    "pytest-env>=1.1.5",
     "pytest-mock>=3.11.1",
     "ruff>=0.0.278",
     "types-protobuf>=4.24.0.20240311",