Update to the latest package:http

Change-Id: I99368077f04208dac0e9b64feb78eccd2a03ddaa
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/197112
Auto-Submit: Nate Bosch <nbosch@google.com>
Commit-Queue: Nate Bosch <nbosch@google.com>
Commit-Queue: Gary Roumanis <grouma@google.com>
Reviewed-by: Gary Roumanis <grouma@google.com>
diff --git a/.dart_tool/package_config.json b/.dart_tool/package_config.json
index bc6c454..8af538d 100644
--- a/.dart_tool/package_config.json
+++ b/.dart_tool/package_config.json
@@ -11,7 +11,7 @@
     "constraint, update this by running tools/generate_package_config.dart."
   ],
   "configVersion": 2,
-  "generated": "2021-04-27T11:20:39.928830",
+  "generated": "2021-04-27T17:23:41.776651",
   "generator": "tools/generate_package_config.dart",
   "packages": [
     {
diff --git a/DEPS b/DEPS
index 8a72859..553bbaf 100644
--- a/DEPS
+++ b/DEPS
@@ -117,7 +117,7 @@
   "http_multi_server_rev" : "7aca9e87d4a68374b685334f20359320054b8d7b",
   "http_parser_rev": "7720bfd42a0c096734c5213478fdce92c62f0293",
   "http_retry_rev": "845771af7bb5ab38ab740ce4a31f3b0c7680302b",
-  "http_rev": "69d6064dd92470ed7ccd50a808fc789ee7716fe8",
+  "http_rev": "14e4fece54591436c1e3083df350b8e142067ae7",
   "http_throttle_tag" : "1.0.2",
   "icu_rev" : "81d656878ec611cb0b42d52c82e9dae93920d9ba",
   "idl_parser_rev": "5fb1ebf49d235b5a70c9f49047e83b0654031eb7",
@@ -725,4 +725,4 @@
     ],
     'condition': 'checkout_win'
   },
-]
\ No newline at end of file
+]