##### SUMMARY

In #65933, I had some confusion over how to set my Galaxy token for CLI usage when running `ansible-galaxy collection publish`, so I could avoid setting `--api-key` on the command line.

Some of that confusion could be avoided by using the same terminology when referring to the Galaxy 'token' everywhere. Currently the docs pages for Galaxy and Collections both mention 'token' multiple times, and only mention the term 'api-key' once, in reference to the Galaxy CLI.

Complicating matters, if I log into galaxy.ansible.com and go to my Preferences, I am shown an "API Key" section. So... it is even less clear whether I should be using a token or API key in various places.

I think, in the end, they are the same thing. But it would be more clear if we just call it one thing everywhere. Therefore, I propose we deprecate the `--api-key` parameter in the `ansible-galaxy` CLI, and use `--token`.

(And we should also change the UI in Galaxy to read 'Token' instead of 'API Key', maybe?)

Alternatively, if 'API Key' is the chosen nomenclature, let's use that everywhere, and ditch the use of 'token'...?

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
galaxy

##### ADDITIONAL INFORMATION
See related: #65933
raise AnsibleError("Expecting requirements file to be a dict with the key 'collections' that contains "
                                   "a list of collections to install")
            for role_req in file_requirements:
                requirements['roles'] += parse_role_req(role_req)
        else:
            
            extra_keys = set(file_requirements.keys()).difference(set(['roles', 'collections']))
            if extra_keys:
                raise AnsibleError("Expecting only 'roles' and/or 'collections' as base keys in the requirements "
                                   "file. Found: %s" % (to_native(", ".join(extra_keys))))
            for role_req in file_requirements.get('roles', []):
                requirements['roles'] += parse_role_req(role_req)
            for collection_req in file_requirements.get('collections', []):
                if isinstance(collection_req, dict):
                    req_name = collection_req.get('name', None)
                    if req_name is None:
                        raise AnsibleError("Collections requirement entry should contain the key name.")
                    req_version = collection_req.get('version', '*')
                    req_source = collection_req.get('source', None)
                    if req_source:
                        
                        
                        req_source = next(iter([a for a in self.api_servers if req_source in [a.name, a.api_server]]),
                                          GalaxyAPI(self.galaxy, "explicit_requirement_%s" % req_name, req_source))
                    requirements['collections'].append((req_name, req_version, req_source))
                else:
                    requirements['collections'].append((collection_req, '*', None))
        return requirements
    @staticmethod
    def exit_without_ignore(rc=1):