Let lock to use redis_options method

[glasses618]

I encountered the same issue as https://github.com/nateware/redis-objects/pull/157 solved, but is for lock method. I am not sure why https://github.com/nateware/redis-objects/pull/157 didn't let lock to use redis_options, but I think it should be.

This PR introduce redis_options on lock methods and add some test cases. P.S. I didn't add test case on sorted_set because it didn't have any options yet. https://github.com/nateware/redis-objects/blob/054c537700e99a27be6b99bfa691351d070dbc5e/spec/redis_objects_model_spec.rb#L6-L16

[codecov[bot]]

Codecov Report

Merging #262 (e475d14) into master (054c537) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #262   +/-   ##
=======================================
  Coverage   98.83%   98.83%           
=======================================
  Files          19       19           
  Lines         944      944           
=======================================
  Hits          933      933           
  Misses         11       11           

Impacted Files	Coverage Δ
lib/redis/objects/locks.rb	97.14% <ø> (ø)

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