fix(deps): update nest monorepo to v7.6.8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@nestjs/common (source)	7.6.7 -> 7.6.8
@nestjs/core (source)	7.6.7 -> 7.6.8
@nestjs/platform-express (source)	7.6.7 -> 7.6.8
@nestjs/platform-socket.io (source)	7.6.7 -> 7.6.8
@nestjs/testing (source)	7.6.7 -> 7.6.8
@nestjs/websockets	7.6.7 -> 7.6.8

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Release Notes

nestjs/nest

v7.6.8

Compare Source

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[codecov]

Codecov Report

Merging #816 (e6266e5) into master (21db452) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #816   +/-   ##
=======================================
  Coverage   91.49%   91.49%           
=======================================
  Files          95       95           
  Lines        2304     2304           
  Branches      250      250           
=======================================
  Hits         2108     2108           
  Misses        195      195           
  Partials        1        1           

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