chore(deps): bump ws from 8.21.0 to 8.21.3

[dependabot]

Bumps ws from 8.21.0 to 8.21.3.

Release notes

Sourced from ws's releases.

8.21.3

Bug fixes

• The server now correctly rejects permessage-deflate offers if the incoming client_max_window_bits parameter value is smaller than its configured clientMaxWindowBits (e97a20ea).

8.21.2

Bug fixes

• Fixed a test for CITGM (2eb3be0b).

8.21.1

Bug fixes

• Empty fragments are now counted toward the limit (a2f4e7c0).
• The default values of the maxBufferedChunks and maxFragments options have been reduced (f197ac65).

Commits

• c791e70 [dist] 8.21.3
• e97a20e [fix] Reject offers with client_max_window_bits below config
• 787ebf2 [dist] 8.21.2
• b4d62eb Revert "[ci] Trust Coveralls Homebrew tap"
• e4bb883 [security] Use GitHub PVR as main reporting channel
• 2eb3be0 [test] Skip test on Node.js versions where it does not apply
• ae1de54 [dist] 8.21.1
• 8e9511b [ci] Trust Coveralls Homebrew tap
• f197ac6 [fix] Lower default values of maxBufferedChunks and maxFragments
• 8df8265 [ci] Update actions/checkout action to v7
• Additional commits viewable in compare view

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Summary by cubic

Upgrade ws from 8.21.0 to 8.21.3 to pick up bug fixes and safer defaults in WebSocket handling. No app code changes.

• Empty fragments now count toward maxFragments; connections may close earlier if messages are heavily fragmented. If you rely on fragmentation, set explicit maxFragments.
• Default maxBufferedChunks and maxFragments are lower; if you relied on previous defaults, set explicit values to keep prior behavior.
• The server now rejects permessage-deflate offers when client_max_window_bits is below configured clientMaxWindowBits; verify client compatibility or align compression settings.

^{Written for commit 4ac6733. Summary will update on new commits.}

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