Bump qs from 6.6.0 to 6.6.1 in /src/demo

[dependabot]

Bumps qs from 6.6.0 to 6.6.1.

Changelog

Sourced from qs's changelog.

6.6.1

• [Fix] parse: ignore __proto__ keys (#428)
• [Fix] fix for an impossible situation: when the formatter is called with a non-string value
• [Fix] utils.merge: avoid a crash with a null target and an array source
• [Fix] utils.merge: avoid a crash with a null target and a truthy non-array source
• [Fix] correctly parse nested arrays
• [Robustness] stringify: avoid relying on a global undefined (#427)
• [Robustness] stringify: cache Object.prototype.hasOwnProperty
• [Refactor] formats: tiny bit of cleanup.
• [Refactor] utils: isBuffer: small tweak; add tests
• [Refactor]: stringify/utils: cache Array.isArray
• [Refactor] utils: reduce observable [[Get]]s
• [Refactor] use cached Array.isArray
• [Refactor] parse/stringify: make a function to normalize the options
• [readme] remove travis badge; add github actions/codecov badges; update URLs
• [Docs] Clarify the need for "arrayLimit" option
• [meta] fix README.md (#399)
• [meta] do not publish workflow files
• [meta] Clean up license text so it’s properly detected as BSD-3-Clause
• [meta] add FUNDING.yml
• [meta] Fixes typo in CHANGELOG.md
• [actions] backport actions from main
• [Tests] fix Buffer tests to work in node < 4.5 and node < 5.10
• [Tests] always use String(x) over x.toString()
• [Dev Deps] backport from main

Commits

• 4cc653c v6.6.1
• 5a8c870 [meta] do not publish workflow files
• 7320525 [Fix] parse: ignore __proto__ keys (#428)
• 65c669e [Robustness] stringify: avoid relying on a global undefined (#427)
• 6024134 [readme] remove travis badge; add github actions/codecov badges; update URLs
• 33b27f4 [meta] fix README.md (#399)
• 54530e2 [actions] backport actions from main
• 8e8e1ef Clean up license text so it’s properly detected as BSD-3-Clause
• 16148bd add FUNDING.yml
• 1e7aa19 [Refactor] formats: tiny bit of cleanup.
• Additional commits viewable in compare view

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