fix: Fixed Permissions object parameter in example

[dandawg]

What this PR does / why we need it:

This is a small PR to fix the parameter in the RBAC local example, specifically for the Permissions class instantiation. The current class instantiation has a name_patterns parameter (plural) instead of the singular as used in the example.

Without this fix, the example instantiation fails with an error.

Which issue(s) this PR fixes:

Misc

You can verify the parameters needed with:

from feast.permissions.permission import Permission

help(Permission)

which returns the following (note the plural name_patterns parameter):

Init signature:
Permission(
    name: str,
    types: Union[list['FeastObject'], ForwardRef('FeastObject'), NoneType] = [],
    name_patterns: Union[str, list[str], NoneType] = [],
    actions: Union[list[feast.permissions.action.AuthzedAction], feast.permissions.action.AuthzedAction] = [<AuthzedAction.CREATE: 'create'>, <AuthzedAction.DESCRIBE: 'describe'>, <AuthzedAction.UPDATE: 'update'>, <AuthzedAction.DELETE: 'delete'>, <AuthzedAction.READ_ONLINE: 'read_online'>, <AuthzedAction.READ_OFFLINE: 'read_offline'>, <AuthzedAction.WRITE_ONLINE: 'write_online'>, <AuthzedAction.WRITE_OFFLINE: 'write_offline'>],
    policy: feast.permissions.policy.Policy = <abc.AllowAll object at 0x145017010>,
    tags: Optional[dict[str, str]] = None,
    required_tags: Optional[dict[str, str]] = None,
)
Docstring:     
The Permission class defines the authorization policy to be validated whenever the identified actions are
requested on the matching resources.

Attributes:
    name: The permission name (can be duplicated, used for logging troubleshooting).
    types: The list of protected resource types as defined by the `FeastObject` type. The match includes all the sub-classes of the given types.
    Defaults to all managed types (e.g. the `ALL_RESOURCE_TYPES` constant)
    name_patterns: A possibly empty list of regex patterns to match the resource name. Defaults to empty list, e.g. no name filtering is applied
    be present in a resource tags with the given value. Defaults to None, meaning that no tags filtering is applied.
    actions: The actions authorized by this permission. Defaults to `ALL_ACTIONS`.
    policy: The policy to be applied to validate a client request.
    tags: A dictionary of key-value pairs to store arbitrary metadata.
    required_tags: Dictionary of key-value pairs that must match the resource tags. All these tags must
File:           ~/Code/Feast/feast/.venv/lib/python3.11/site-packages/feast/permissions/permission.py
Type:           ABCMeta
Subclasses:     
~

[franciscojavierarceo]

Thank you for this!