GHSA-pr33-38xx-6r26: http4k: BasicCookieStorage` (renamed `InsecureCookieStorage`) did not enforce RFC 6265 cookie scoping; new `DefaultCookieStorage` is now the default

The previous BasicCookieStorage did not enforce RFC 6265 scoping rules around cookie domain, path, and Secure attribute. A client using a single storage instance to talk to multiple origins could have cookies leak across domains, or have Secure cookies sent over plain HTTP — the deprecation message states it bluntly: “BasicCookieStorage has no domain/path/scheme scoping and leaks cookies across origins. Use DefaultCookieStorage instead.”

Who is affected: any client using BasicCookieStorage directly with cookies for more than one origin or scheme. Single-origin uses are unaffected.