Fix CI and version mismatch

- Bump version to 0.5.0 in all files (pyproject.toml, __init__.py, client.py)
- Fix README.md version reference
- Add pytest-cov to CI dependencies to fix pytest execution

Author: shihweilo

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install ruff pytest
+        pip install ruff pytest pytest-cov
         pip install -e .
         
     - name: Lint with Ruff

README.md

@@ -8,7 +8,7 @@
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
 > [!IMPORTANT]
-> **Python 2 Support Dropped**: As of version 0.4.0, this library no longer supports Python 2.7. Please use Python 3.8 or newer.
+> **Python 2 Support Dropped**: As of version 0.5.0, this library no longer supports Python 2.7. Please use Python 3.8 or newer.
 
 This is the unofficial Python client library for TapPay's Backend API. To use it you'll need a TapPay account. Sign up at [tappaysdk.com](https://www.tappaysdk.com).
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "tappay"
-version = "0.4.0"
+version = "0.5.0"
 authors = [
   { name="Shih Wei Chris Lo", email="[email protected]" },
 ]

tappay/__init__.py

@@ -1,5 +1,5 @@
 
-__version__ = "0.4.0"
+__version__ = "0.5.0"
 
 from tappay.client import Client
 from tappay.models import Models

tappay/client.py

@@ -17,7 +17,7 @@
 # or just duplicate/move it.
 # Let's define it in client.py for now to avoid circular dependency if __init__ imports client.
 # Actually, the original code used it in User-Agent.
-VERSION = "0.4.0"
+VERSION = "0.5.0"
 
 
 class Client: