v0.6.0b9

Features and bugfixes since v0.6.0b7:

• Add native build for Windows(x86) and macOS(arm64) build.
• Support file upload with the multipart parameter.
• Suppress decode error for debugging.
• Throw error when session was already closed.
• Add cert for client certificate.
• Add the proxy parameter for easier usage.
• Add missing safari17_0

The minimium supported python version is now 3.8, except for macOS(arm64), which is 3.9.