fix(bug): logger production config regression

[rustatian]

Reason for This PR

• Logger should always show an error and never be disabled (w/o error).
• Production logger config w/o encoder name cause an error.

Description of Changes

• Fix logger regression. Use recommended production config.
• Always return an error from the logger Init function for the endure.

License Acceptance

By submitting this pull request, I confirm that my contribution is made under the terms of the MIT license.

PR Checklist

[Author TODO: Meet these criteria.] [Reviewer TODO: Verify that these criteria are met. Request changes if not]

• [x] All commits in this PR are signed (git commit -s).
• [x] The reason for this PR is clearly provided (issue no. or explanation).
• [x] The description of changes is clear and encompassing.
• [x] Any required documentation changes (code and docs) are included in this PR.
• [x] Any user-facing changes are mentioned in CHANGELOG.md.
• [x] All added/changed functionality is tested.

[codecov[bot]]

Codecov Report

Merging #52 (03284e2) into master (4f8f4d8) will decrease coverage by 0.04%. The diff coverage is 20.00%.

@@            Coverage Diff             @@
##           master      #52      +/-   ##
==========================================
- Coverage   67.22%   67.17%   -0.05%     
==========================================
  Files         110      110              
  Lines        9198     9175      -23     
==========================================
- Hits         6183     6163      -20     
+ Misses       2386     2384       -2     
+ Partials      629      628       -1     

Impacted Files	Coverage Δ
logger/plugin.go	55.81% <0.00%> (ø)
logger/config.go	62.80% <100.00%> (-5.95%)	:arrow_down:
beanstalk/item.go	74.19% <0.00%> (-3.23%)	:arrow_down:
amqp/amqpjobs/item.go	71.01% <0.00%> (+1.44%)	:arrow_up:
boltdb/boltjobs/listener.go	61.90% <0.00%> (+2.85%)	:arrow_up:

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