Bump intersection-observer from 0.8.0 to 0.9.0 (#7468)

Bumps [intersection-observer](https://github.com/w3c/IntersectionObserver) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/w3c/IntersectionObserver/releases)
- [Commits](https://github.com/w3c/IntersectionObserver/commits)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -127,7 +127,7 @@
     "file-loader": "^6.0.0",
     "focus-visible": "^5.1.0",
     "honeybadger-js": "2.2.1",
-    "intersection-observer": "^0.8.0",
+    "intersection-observer": "^0.9.0",
     "linkstate": "^1.1.1",
     "lodash.debounce": "4.0.8",
     "marked": "^0.8.2",

yarn.lock

@@ -7147,10 +7147,10 @@ interpret@^2.0.0:
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-2.0.0.tgz#b783ffac0b8371503e9ab39561df223286aa5433"
   integrity sha512-e0/LknJ8wpMMhTiWcjivB+ESwIuvHnBSlBbmP/pSb8CQJldoj1p2qv7xGZ/+BtbTziYRFSz8OsvdbiX45LtYQA==
 
-intersection-observer@^0.8.0:
-  version "0.8.0"
-  resolved "https://registry.yarnpkg.com/intersection-observer/-/intersection-observer-0.8.0.tgz#e61274136f81dc114a7340a0b2e7a30b9787c438"
-  integrity sha512-o5nSHpitRPDRPe9NDBJNwKp24Wa11xQSDPOg/s6PsWIaGRoAOwBoMMY1R/UmlezBohjdFW6W4kJ9rkm3jCK+Hg==
+intersection-observer@^0.9.0:
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/intersection-observer/-/intersection-observer-0.9.0.tgz#c2f07322764c7bfa235c52fe893760e3d3a84321"
+  integrity sha512-n2rP8fawV1EtOFPk5VsQ8uxBx1GqT/5kYYc/GwCQqMqgUJRryMJ4nqAlvqXlh6JmJWRp7PkJW+RrgSeIfOshgA==
 
 invariant@^2.2.0, invariant@^2.2.2, invariant@^2.2.3, invariant@^2.2.4:
   version "2.2.4"