New float_value and int_value fields have been added (#111)

* Add float_value and int_value

* Fix NoneType error in asset properties

🚑 Fix 400 Bad Request on login - Add protobuf authentication support (#…

…108)

* auth_pb2.py

protobuf authentication

* Delete auth_pb2.py

* added auth_pb2.py

added auth_pb2.py to support protobuf authentication

* Implement new Steam auth API with protobuf support

Updated login.py to support new Steam authentication API using protobuf. Added error handling for missing protobuf library and modified session request and polling methods to use protobuf encoding.

🚑 Fix #103: `place_buy_order` confirmation and response status. v0.7.18

Bump version to 0.7.17

Bump version to v0.7.16

Trade protection rules acknowledgment. v0.7.15

Bump version to v0.7.14

🚑 Fix #81 : `paid_amount` on `MarketHistoryListing` as purchase, `Eco…

…nItem.tradable_after` separator change. v0.7.13

Edit `pyproject.toml` according to `PEP 621`, bump minimal required `…

…Poetry` version to `2.0`. Edit `Poetry` commands in workflows

`StrEnum` from stdlib for Python >= 3.11. v0.7.11