feat: make requirements compatible with Python 3.6

Author: IgnacioHeredia

pyproject.toml

@@ -49,14 +49,14 @@ deepaas-cli = "deepaas.cmd.cli:main"
 deepaas = "deepaas.opts:list_opts"
 
 [tool.poetry.dependencies]
-python = "^3.10"
-"oslo.log" = "^6.0.0"
-"oslo.config" = "^9.4.0"
-stevedore = "^5.2.0"
-aiohttp = "^3.9.5"
+python = "^3.6"
+"oslo.log" = "^4.8.0"
+"oslo.config" = "^8.8.1"
+stevedore = "^3.5.2"
+aiohttp = "^3.8.6"
 aiohttp-apispec = "^2.2.3"
-Werkzeug = "^3.0.3"
-marshmallow = "^3.21.3"
+Werkzeug = "^2.0.3"
+marshmallow = "^3.14.1"
 webargs = "<6.0.0"