fix: bump requests-cache to ^0.9 to mitigate a Arbitrary Code Executi…

…on issue in version 0.5.2

pyproject.toml

@@ -37,21 +37,23 @@ lightstreamer-client-lib = "^1.0.3"
 
 pandas = { version = "^1", optional = true }
 munch = { version = "^2.5", optional = true }
-tenacity = { version = "^8", optional = true }
+tenacity = {version = "^8", optional = true}
 
 [tool.poetry.extras]
 pandas = ["pandas"]
 munch = ["munch"]
 tenacity = ["tenacity"]
 sphinx = ["sphinx"]
-docs = ["sphinx"]
+docs = [
+    "sphinx"
+]
 
 [tool.poetry.group.dev.dependencies]
 flake8 = "^3.9"
 pytest = "^6.2"
 responses = "^0.12"
 coveralls = "^3.2"
-sphinx-rtd-theme = { version = "^1.0.0", optional = true }
+sphinx-rtd-theme = {version = "^1.0.0", optional = true}
 importlib-metadata = "==4.13.0"
 black = "23.3.0"