update http_multi_server

internal change cl/359585920

Change-Id: I85512dcfb38283744dca9266e926daec4e622c15
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/187640
Auto-Submit: Jake Macdonald <[email protected]>
Reviewed-by: Nate Bosch <[email protected]>
Commit-Queue: Jake Macdonald <[email protected]>

Author: jakemac53

.dart_tool/package_config.json

@@ -11,7 +11,7 @@
     "constraint, update this by running tools/generate_package_config.dart."
   ],
   "configVersion": 2,
-  "generated": "2021-02-24T07:33:35.310314",
+  "generated": "2021-02-25T12:53:17.111860",
   "generator": "tools/generate_package_config.dart",
   "packages": [
     {
@@ -327,7 +327,7 @@
       "name": "http_multi_server",
       "rootUri": "../third_party/pkg/http_multi_server",
       "packageUri": "lib/",
-      "languageVersion": "2.1"
+      "languageVersion": "2.12"
     },
     {
       "name": "http_parser",

DEPS

@@ -108,7 +108,7 @@ vars = {
   "glob_rev": "a62acf590598f458d3198d9f2930c1c9dd4b1379",
   "html_rev": "00cd3c22dac0e68e6ed9e7e4945101aedb1b3109",
   "http_io_rev": "2fa188caf7937e313026557713f7feffedd4978b",
-  "http_multi_server_rev" : "e8c8be7f15b4fb50757ff5bf29766721fbe24fe4",
+  "http_multi_server_rev" : "6bf4b6e5d4d890e6d54559b858ff229d79711171",
   "http_parser_rev": "5dd4d16693242049dfb43b5efa429fedbf932e98",
   "http_retry_tag": "0.1.1",
   "http_rev": "d5c678cd63c3e9c1d779a09acfa95b7e3af84665",