Stop supporting Python 3.8, add Python 3.13

Author: multimeric

.github/workflows/build.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4

README.md

@@ -4,7 +4,7 @@
 
 ## Installation
 
-Requires `Python>=3.8`
+Requires `Python>=3.9`
 
 ```bash
 pip install filesender-client

pyproject.toml

@@ -7,7 +7,7 @@ name = "filesender-client"
 description = "FileSender Python CLI and API client"
 version = "2.1.1"
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = {text = "BSD-3-Clause"}
 classifiers = [
     "Programming Language :: Python :: 3",