Update dependency eslint to v7.15.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
eslint (source)	7.14.0 -> 7.15.0

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Release Notes

eslint/eslint

v7.15.0

Compare Source

• 5c11aab Upgrade: @​eslint/esintrc and espree for bug fixes (refs #​13878) (#​13908) (Brandon Mills)
• 0eb7957 Upgrade: file-entry-cache@6.0.0 (#​13877) (Rouven Weßling)
• 683ad00 New: no-unsafe-optional-chaining rule (fixes #​13431) (#​13859) (YeonJuan)
• cbc57fb Fix: one-var autofixing for export (fixes #​13834) (#​13891) (Anix)
• 110cf96 Docs: Fix a broken link in working-with-rules.md (#​13875) (Anton Niklasson)

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[codecov]

Codecov Report

Merging #173 (156f1c8) into master (d255312) will increase coverage by 3.22%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #173      +/-   ##
==========================================
+ Coverage   90.32%   93.54%   +3.22%     
==========================================
  Files           1        1              
  Lines          31       31              
  Branches       10       10              
==========================================
+ Hits           28       29       +1     
+ Misses          2        1       -1     
  Partials        1        1              

Impacted Files	Coverage Δ
index.js	93.54% <0.00%> (+3.22%)	⬆️

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