chore: update dependency http-proxy-middleware to v4

[seqeralabs-renovate]

This PR contains the following updates:

Package	Type	Update	Change
http-proxy-middleware	overrides	major	^3.0.6 → ^4.0.0

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Release Notes

chimurai/http-proxy-middleware (http-proxy-middleware)

v4.1.1

Compare Source

• fix(fixRequestBody): harden form-data stringification

v4.1.0

Compare Source

• feat(definePlugin): helper function to create plugins
• chore(package.json): update to httpxy@​0.5.3
• fix(ipv6): preserve credentials when normalizing bracketed IPv6 target string
• fix(ipv6): unspecified IPv6 target hostname (::)
• fix(response-interceptor): reduce responseInterceptor buffer churn
• fix(ws): handle multi-server upgrade subscription and safe proxy shutdown
• feat(router): add 'res' and 'options' to router function
• feat(pathRewrite): add 'res' and 'options' to custom pathRewrite function
• fix(responseInterceptor): prevent trailer/content-length conflict
• feat(zstd): support zstd compression in responseInterceptor and fixRequestBody
• fix(responseInterceptor): handle bodyless responses (HEAD/1xx/204/304) with content-encoding
• fix(router): harden proxy-table matching

v4.0.0

Compare Source

• fix(types): fix Logger type
• fix(error-response-plugin): sanitize input
• feat: drop node v14/v16/v18 [BREAKING CHANGE]
• refactor: replace http-proxy w/ httpxy
• chore: remove legacyCreateProxyMiddleware() [BREAKING CHANGE]
• ci: migrate from jest to vitest
• chore(package.json): esm only [BREAKING CHANGE]
• chore(package.json): bump to httpxy 0.5.0 (#​1183)
• chore(package.json): drop node20 [BREAKING CHANGE] (#​1179)
• refactor: remove deprecated url.parse() (#​1176)
• fix(fixRequestBody): support content-encoding on request body (#​1142)
• fix: prevent TypeError when ws enabled but server is undefined (#​1163)
• fix: applyPathRewrite logs old req.url instead of rewritten path (#​1157)
• feat(hono): support for hono with createHonoProxyMiddleware
• feat(ipv6): support literal IPv6 addresses in target and forward options (ie. "http://[::1]:8000")
• chore(package.json): bump httpxy to ^0.5.1
• fix(logger-plugin): support ipv6 host and handle undefined protocol/host
• ci(publish.yml): pin github.triggering_actor
• chore(package.json): node ^22.15.0 (#​1218)
• refactor(package): subpath 'http-proxy-middleware/hono' (#​1220)
• chore: node 26 support

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