Bump tailwindcss from 2.2.9 to 2.2.15 in /packages/website

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss) from 2.2.9 to 2.2.15.
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/master/CHANGELOG.md)
- [Commits](https://github.com/tailwindlabs/tailwindcss/compare/v2.2.9...v2.2.15)

---
updated-dependencies:
- dependency-name: tailwindcss
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

packages/website/package.json

@@ -62,7 +62,7 @@
     "skynet-js": "^4.0.11-beta",
     "stream-browserify": "^3.0.0",
     "swr": "^1.0.0",
-    "tailwindcss": "^2.2.9"
+    "tailwindcss": "^2.2.15"
   },
   "devDependencies": {
     "cross-env": "^7.0.3",

packages/website/yarn.lock

@@ -6170,7 +6170,7 @@ gatsby-cli@^3.13.0:
     yoga-layout-prebuilt "^1.9.6"
     yurnalist "^2.1.0"
 
-gatsby-core-utils@^2.12.0, gatsby-core-utils@^2.13.0:
+gatsby-core-utils@^2.13.0:
   version "2.13.0"
   resolved "https://registry.yarnpkg.com/gatsby-core-utils/-/gatsby-core-utils-2.13.0.tgz#8ba74904bdeb66d310325ca588d0ca7614efb351"
   integrity sha512-fkMAxiWFY8N26Iui/Wq8yfE2FY2b31bGJVtlIlSwLgfsoO7fpta64lxeivRtfpNLbAoywmWY/L8TC74GFlnuWg==
@@ -12956,10 +12956,10 @@ table@^6.0.9:
     string-width "^4.2.0"
     strip-ansi "^6.0.0"
 
-tailwindcss@^2.2.9:
-  version "2.2.9"
-  resolved "https://registry.yarnpkg.com/tailwindcss/-/tailwindcss-2.2.9.tgz#1484bd45a4a9f9f5de7faabf74c11bf0aeb5ad98"
-  integrity sha512-P8zCKFkEthfUvqcnun8DqGGXw4QqyDw971NAM23e8QQ+m5HW1agp4upq50rFGwGNtphVYvr+0zvVLSXo5/I9Qg==
+tailwindcss@^2.2.15:
+  version "2.2.15"
+  resolved "https://registry.yarnpkg.com/tailwindcss/-/tailwindcss-2.2.15.tgz#8bee3ebe68b988c050508ce20633f35b040dd9fe"
+  integrity sha512-WgV41xTMbnSoTNMNnJvShQZ+8GmY86DmXTrCgnsveNZJdlybfwCItV8kAqjYmU49YiFr+ofzmT1JlAKajBZboQ==
   dependencies:
     arg "^5.0.1"
     bytes "^3.0.0"
@@ -12974,6 +12974,7 @@ tailwindcss@^2.2.9:
     fs-extra "^10.0.0"
     glob-parent "^6.0.1"
     html-tags "^3.1.0"
+    is-color-stop "^1.1.0"
     is-glob "^4.0.1"
     lodash "^4.17.21"
     lodash.topath "^4.5.2"