[WIP][#40] updating dependencies

[ferigis]

[close #40]

[codecov-io]

Codecov Report

Merging #47 into master will decrease coverage by 0.88%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #47      +/-   ##
==========================================
- Coverage   95.15%   94.27%   -0.89%     
==========================================
  Files          11       11              
  Lines         227      227              
==========================================
- Hits          216      214       -2     
- Misses         11       13       +2

Impacted Files	Coverage Δ
src/sheldon_suggestions_server.erl	53.33% <0%> (-13.34%)	⬇️

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[ferigis]

Codecov is doing a weird calculation since I didn't change code and everything looks the same. After this PR I will work on #48 in order to get the 100% coverage