[deps] rev ecosystem, http, tools, webdev

Revisions updated by `dart tools/rev_sdk_deps.dart`.

ecosystem (https://github.com/dart-lang/ecosystem/compare/f4fbac4..6a8746e):
  6a8746e  2025-10-13  Moritz  Use newest verion of firehose in publish (dart-lang/ecosystem#378)

http (https://github.com/dart-lang/http/compare/2c53fa3..2cb6c12):
  2cb6c12  2025-10-15  Brian Quinlan  chore(cronet_http): Prepare to release 1.6.0 (dart-lang/http#1833)
  a906598  2025-10-16  Denys Vitali  fix(ok_http): trust manager init (dart-lang/http#1830)
  54dfd63  2025-10-15  Brian Quinlan  docs(cupertino_http): Clarify that happens when a request is cancelled (dart-lang/http#1834)
  3e3c366  2025-10-15  Brian Quinlan  chore(okhttp): Fix CI by setting minSdk=24 (dart-lang/http#1835)
  6271faf  2025-10-13  Benjamin  feat: export MediaType from http_parser (dart-lang/http#1803)
  32dee0c  2025-10-13  Benjamin  chore(cronet_http): bump compileSdkVersion to 34 (dart-lang/http#1832)

tools (https://github.com/dart-lang/tools/compare/adf3fe7..f5920a2):
  f5920a2d  2025-10-16  Morgan :)  Fix `PollingDirectoryWatcher` for delete during poll. (dart-lang/tools#2212)
  289ba0d3  2025-10-15  Morgan :)  Add DirectoryWatcher symlink tests. (dart-lang/tools#2206)
  1275d4c3  2025-10-14  Kevin Moore  Bump deps for graphs, html, process, pubspec_parse (dart-lang/tools#2210)
  8b9a48ca  2025-10-14  Morgan :)  Fix test handling of link timestamps. (dart-lang/tools#2208)
  81588f32  2025-10-14  Abgar Simonean  Update to oauth2 package README for Flutter Web info (dart-lang/tools#1961)

webdev (https://github.com/dart-lang/webdev/compare/186bfe7..2517aa9):
  2517aa94  2025-10-13  Srujan Gaddam  [DWDS] Make pause a no-op on WebSocketProxyService (dart-lang/webdev#2697)

Change-Id: Ifee5e199cf5799aa5962639e686192874f4d58b3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/455480
Auto-Submit: Devon Carew <devoncarew@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>

Author: devoncarew

DEPS

@@ -134,9 +134,9 @@ vars = {
   "ai_rev": "a29274bb2f8a48434f6d9b44d29ee3bbabf669ba",
   "core_rev": "5c3e2c38df268be2347f3aad30ced0147dd012bb", # b/444274553
   "dartdoc_rev": "98d03ad2cc341d1fb053e0addfc96ba35301976b",
-  "ecosystem_rev": "f4fbac4de4a61c60193556e63e52b790ecc5e986",
+  "ecosystem_rev": "6a8746e70b315aceec7f81cae9bef8b67abb2453",
   "flute_rev": "b84119fba67016a80c3eb80765762bcc4d0d0b8d",
-  "http_rev": "2c53fa3c558ec5d1dd9fce4360d435113dba11e5",
+  "http_rev": "2cb6c12966e18abc11a0217a8b613742849a29ea",
   "i18n_rev": "34d1832b7e65d9aef1f7f6a82c22f6e53476191c",
   "leak_tracker_rev": "f5620600a5ce1c44f65ddaa02001e200b096e14c", # rolled manually
   "material_color_utilities_rev": "799b6ba2f3f1c28c67cc7e0b4f18e0c7d7f3c03e",
@@ -147,10 +147,10 @@ vars = {
   "sync_http_rev": "6666fff944221891182e1f80bf56569338164d72",
   "tar_rev": "13479f7c2a18f499e840ad470cfcca8c579f6909",
   "test_rev": "8083c8f24ffbca58cc0385add03c296b70636e7a",
-  "tools_rev": "adf3fe7853d2d41ed39ee615fc4dc1a97bf5034c",
+  "tools_rev": "f5920a2d58351931999279b405a4f16b3166311c",
   "vector_math_rev": "a7b7e9ccb931348dbfa669e0f8fea1bf97705b16",
   "web_rev": "816abcc1bf186f61c7e66e7f4c56d1554a61ab27",
-  "webdev_rev": "186bfe71c54a851afd2629c6445cd6a8e9516ee1",
+  "webdev_rev": "2517aa94c3ff5b51bbe432c9bd4da6ee4308a5bf",
   "webdriver_rev": "09104f459ed834d48b132f6b7734923b1fbcf2e9",
   "webkit_inspection_protocol_rev": "0f7685804d77ec02c6564d7ac1a6c8a2341c5bdf",