chore(deps-dev): bump storybook-dark-mode in /storybook

Bumps [storybook-dark-mode](https://github.com/hipstersmoothie/storybook-dark-mode) from 1.0.8 to 1.0.9.
- [Release notes](https://github.com/hipstersmoothie/storybook-dark-mode/releases)
- [Changelog](https://github.com/hipstersmoothie/storybook-dark-mode/blob/master/CHANGELOG.md)
- [Commits](https://github.com/hipstersmoothie/storybook-dark-mode/compare/v1.0.8...v1.0.9)

---
updated-dependencies:
- dependency-name: storybook-dark-mode
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

storybook/package.json

@@ -21,7 +21,7 @@
     "@storybook/addon-storysource": "^6.4.19",
     "@storybook/addons": "^6.4.19",
     "@storybook/react": "^6.4.19",
-    "storybook-dark-mode": "^1.0.8"
+    "storybook-dark-mode": "^1.0.9"
   },
   "peerDependencies": {
     "@backstage/theme": "link:../packages/theme",

storybook/yarn.lock

@@ -7859,10 +7859,10 @@ store2@^2.12.0:
   resolved "https://registry.npmjs.org/store2/-/store2-2.13.1.tgz#fae7b5bb9d35fc53dc61cd262df3abb2f6e59022"
   integrity sha512-iJtHSGmNgAUx0b/MCS6ASGxb//hGrHHRgzvN+K5bvkBTN7A9RTpPSf1WSp+nPGvWCJ1jRnvY7MKnuqfoi3OEqg==
 
-storybook-dark-mode@^1.0.8:
-  version "1.0.8"
-  resolved "https://registry.npmjs.org/storybook-dark-mode/-/storybook-dark-mode-1.0.8.tgz#bbd64b382fd62d38685fdd769e2cac4e32ec293d"
-  integrity sha512-uY6yTSd1vYE0YwlON50u+iIoNF/fmMj59ww1cpd/naUcmOmCjwawViKFG5YjichwdR/yJ5ybWRUF0tnRQfaSiw==
+storybook-dark-mode@^1.0.9:
+  version "1.0.9"
+  resolved "https://registry.npmjs.org/storybook-dark-mode/-/storybook-dark-mode-1.0.9.tgz#40c15aa340bc700df2fb4f1345250e6fdace0b3a"
+  integrity sha512-ITPXM2OSaga1zM5blpZy5HxMWAhrAqYi9aJtLgRtSdgoRrxVNAInDRD14TjmObdgLHNWxINoNbnEB+sKETa+iw==
   dependencies:
     fast-deep-equal "^3.0.0"
     memoizerific "^1.11.3"