Bump to 0.5.4: SafariIos profile + Chrome fingerprint alignment + locale helper

- New BrowserProfile::SafariIos mapped to BrowserVariant::SafariIos26.
  Built on wreq_util::Emulation::SafariIos26 with 4 overrides (TLS
  extension order, HTTP/2 HEADERS priority, real Safari iOS 26 headers,
  gzip/deflate/br). Matches bogdanfinn safari_ios_26_0 JA3
  8d909525bd5bbb79f133d11cc05159fe exactly. Empirically 9/10 on
  immobiliare.it with country-it residential.

- BrowserProfile::Chrome aligned to bogdanfinn chrome_133: dropped
  MAX_CONCURRENT_STREAMS from H2 SETTINGS, priority weight 256,
  explicit extension_permutation, advertise h3 in ALPN and ALPS.
  JA3 43067709b025da334de1279a120f8e14, akamai_fp
  52d84b11737d980aef856699f885ca86. Fixes indeed.com and other
  Cloudflare-fronted sites.

- New locale module: accept_language_for_url / accept_language_for_tld.
  TLD to Accept-Language mapping, unknown TLDs default to en-US.
  DataDome geo-vs-locale cross-checks are now trivially satisfiable.

- wreq-util bumped 2.2.6 to 3.0.0-rc.10 for Emulation::SafariIos26.

Cargo.lock

@@ -2967,6 +2967,26 @@ dependencies = [
  "pom",
 ]
 
+[[package]]
+name = "typed-builder"
+version = "0.23.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "31aa81521b70f94402501d848ccc0ecaa8f93c8eb6999eb9747e72287757ffda"
+dependencies = [
+ "typed-builder-macro",
+]
+
+[[package]]
+name = "typed-builder-macro"
+version = "0.23.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "076a02dc54dd46795c2e9c8282ed40bcfb1e22747e955de9389a1de28190fb26"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "typed-path"
 version = "0.12.3"
@@ -3258,6 +3278,7 @@ dependencies = [
  "webclaw-core",
  "webclaw-pdf",
  "wreq",
+ "wreq-util",
  "zip 2.4.2",
 ]
 
@@ -3709,6 +3730,16 @@ dependencies = [
  "zstd",
 ]
 
+[[package]]
+name = "wreq-util"
+version = "3.0.0-rc.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c6bbe24d28beb9ceb58b514bd6a613c759d3b706f768b9d2950d5d35b543c04"
+dependencies = [
+ "typed-builder",
+ "wreq",
+]
+
 [[package]]
 name = "writeable"
 version = "0.6.2"