Bump instantsearch.css from 7.4.5 to 8.1.0

Bumps [instantsearch.css](https://github.com/algolia/instantsearch) from 7.4.5 to 8.1.0.
- [Release notes](https://github.com/algolia/instantsearch/releases)
- [Commits](https://github.com/algolia/instantsearch/compare/instantsearch.css@7.4.5...instantsearch.css@8.1.0)

---
updated-dependencies:
- dependency-name: instantsearch.css
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

www/package.json

@@ -26,7 +26,7 @@
     "gray-matter": "^4.0.3",
     "html-minifier": "^4.0.0",
     "http-server": "^14.1.1",
-    "instantsearch.css": "^7.4.5",
+    "instantsearch.css": "^8.1.0",
     "instantsearch.js": "^4.44.0",
     "jest": "^27.5.1",
     "jest-image-snapshot": "^5.1.0",

yarn.lock

@@ -5315,10 +5315,10 @@ inquirer@^6.3.1:
     strip-ansi "^5.1.0"
     through "^2.3.6"
 
-instantsearch.css@^7.4.5:
-  version "7.4.5"
-  resolved "https://registry.npmjs.org/instantsearch.css/-/instantsearch.css-7.4.5.tgz"
-  integrity sha512-iIGBYjCokU93DDB8kbeztKtlu4qVEyTg1xvS6iSO1YvqRwkIZgf0tmsl/GytsLdZhuw8j4wEaeYsCzNbeJ/zEQ==
+instantsearch.css@^8.1.0:
+  version "8.1.0"
+  resolved "https://registry.yarnpkg.com/instantsearch.css/-/instantsearch.css-8.1.0.tgz#e3a7dfb9bfa3db1d24e7d2d1e04a44197be3c7bc"
+  integrity sha512-rPhcAZ02bLwUn3iOXbldZW/yl+17guWoH3qWYZ8nQEwNBx5+wZ6Bv8mFqqK448+R2aU4nbFKIhmoTIPXI5Zobg==
 
 instantsearch.js@^4.44.0:
   version "4.44.0"