Adding server doesn't work with click 7.1.2

[danielbender1989]

I was trying to add a server with rsconnect add via command line on a system where click 7.1.2 was preinstalled. This resulted in the following error:

agent_1  | [Container] 2022/10/20 08:27:19 Running command rsconnect add --server server --name cap --api-key key 
agent_1  | Detected the following inputs:
agent_1  | Traceback (most recent call last):
agent_1  |   File "/root/.pyenv/versions/3.9.12/bin/rsconnect", line 8, in <module>
agent_1  |     sys.exit(cli())
agent_1  |   File "/root/.pyenv/versions/3.9.12/lib/python3.9/site-packages/click/core.py", line 829, in __call__
agent_1  |     return self.main(*args, **kwargs)
agent_1  |   File "/root/.pyenv/versions/3.9.12/lib/python3.9/site-packages/click/core.py", line 782, in main
agent_1  |     rv = self.invoke(ctx)
agent_1  |   File "/root/.pyenv/versions/3.9.12/lib/python3.9/site-packages/click/core.py", line 1259, in invoke
agent_1  |     return _process_result(sub_ctx.command.invoke(sub_ctx))
agent_1  |   File "/root/.pyenv/versions/3.9.12/lib/python3.9/site-packages/click/core.py", line 1066, in invoke
agent_1  |     return ctx.invoke(self.callback, **ctx.params)
agent_1  |   File "/root/.pyenv/versions/3.9.12/lib/python3.9/site-packages/click/core.py", line 610, in invoke
agent_1  |     return callback(*args, **kwargs)
agent_1  |   File "/root/.pyenv/versions/3.9.12/lib/python3.9/site-packages/rsconnect/main.py", line 157, in wrapper
agent_1  |     return func(*args, **kwargs)
agent_1  |   File "/root/.pyenv/versions/3.9.12/lib/python3.9/site-packages/click/decorators.py", line 21, in new_func
agent_1  |     return f(get_current_context(), *args, **kwargs)
agent_1  |   File "/root/.pyenv/versions/3.9.12/lib/python3.9/site-packages/rsconnect/main.py", line 332, in add
agent_1  |     click.echo("    {}: {}".format(k, ctx.get_parameter_source(k).name))
agent_1  | AttributeError: 'Context' object has no attribute 'get_parameter_source'

According to the release notes of click, detecting parameter sources was only added in version 8.0.0. Therefore, it would make sense to change the requirements to click >= 8.0.0.