Update dependency bufferutil to v4.0.5

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
bufferutil	4.0.4 -> 4.0.5

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Release Notes

websockets/bufferutil

### [`v4.0.5`](https://togithub.com/websockets/bufferutil/compare/v4.0.4...v4.0.5) [Compare Source](https://togithub.com/websockets/bufferutil/compare/v4.0.4...v4.0.5)

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Configuration

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[codecov[bot]]

Codecov Report

Merging #507 (58ae2b2) into master (0021107) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #507   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            8         8           
  Lines          342       342           
  Branches        51        51           
=========================================
  Hits           342       342           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

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