Update dependency typescript to ^3.9.9

package.json

@@ -88,7 +88,7 @@
     "mkdirp": "^1.0.4",
     "parcel-bundler": "^1.12.4",
     "sourcegraph": "^24.7.0",
-    "typescript": "^3.9.7"
+    "typescript": "^3.9.9"
   },
     "icon": "data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg' preserveAspectRatio='xMidYMid'%3E%3Cdefs/%3E%3Cdefs%3E%3ClinearGradient x1='50%25' y1='4%25' x2='50%25' y2='100%25' id='a'%3E%3Cstop stop-color='%23FDFDFD' offset='0%25'/%3E%3Cstop stop-color='%23CBCBCB' offset='100%25'/%3E%3C/linearGradient%3E%3ClinearGradient x1='50%25' y1='4%25' x2='50%25' y2='100%25' id='b'%3E%3Cstop stop-color='%23B2E198' offset='0%25'/%3E%3Cstop stop-color='%2304A171' offset='100%25'/%3E%3C/linearGradient%3E%3C/defs%3E%3Ccircle fill='url(%23a)' cx='128' cy='128' r='127.9'/%3E%3Ccircle fill='url(%23b)' cx='127.9' cy='128.1' r='116.9'/%3E%3Cpath d='M100 110l-4 6-3-11 12-1-5 6zm104 8c-5-4-10-8-18-11a172 172 0 00-64-12c17-20 32-30 41-30l5 1c5 3 6 11 4 23a4 4 0 008 2c4-20-2-29-7-32-3-2-6-3-10-3-14 1-34 16-52 39l-20 2-2-10c-2-13 0-23 5-25l3-1c4 0 11 3 18 9a4 4 0 005-7c-9-7-17-11-24-10l-5 1c-5 3-8 7-10 14v20l1 10-14 4c-18 7-22 16-22 22-1 6 2 14 18 23a4 4 0 004-8c-9-5-14-10-14-15 0-6 11-13 30-17l7 19c-7 13-12 25-14 36-2 8-3 15-2 21 1 7 4 11 8 14 2 2 5 3 9 3 6 0 13-3 23-10a4 4 0 10-5-7c-9 7-18 10-22 7-5-3-6-13-3-26l10-28 4 7c9 19 21 36 33 47 6 5 12 9 17 11 3 2 6 2 9 2l7-1c5-3 8-7 10-13l1-20c-2-15-8-33-16-51a4 4 0 00-8 3c8 18 14 35 15 49 1 13-1 22-5 24-5 3-14-1-24-11a163 163 0 01-38-56 211 211 0 0115-24 199 199 0 0168 12c12 5 19 11 19 17 0 5-6 9-16 13a4 4 0 003 8c17-6 21-15 21-21 1-5-2-10-6-14z' fill='%23F2F8F6'/%3E%3Cpath d='M119 129a9 9 0 1019 0 9 9 0 00-19 0' fill='%23F1F8F3'/%3E%3C/svg%3E"
 }

yarn.lock

@@ -6361,10 +6361,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.9.7:
-  version "3.9.7"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.7.tgz#98d600a5ebdc38f40cb277522f12dc800e9e25fa"
-  integrity sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==
+typescript@^3.9.9:
+  version "3.9.9"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.9.tgz#e69905c54bc0681d0518bd4d587cc6f2d0b1a674"
+  integrity sha512-kdMjTiekY+z/ubJCATUPlRDl39vXYiMV9iyeMuEuXZh2we6zz80uovNN2WlAxmmdE/Z/YQe+EbOEXB5RHEED3w==
 
 uncss@^0.17.3:
   version "0.17.3"