Bump postcss from 8.2.1 to 8.2.10 in /Clients/SampleSolution.Web

Bumps [postcss](https://github.com/postcss/postcss) from 8.2.1 to 8.2.10.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.2.1...8.2.10)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Clients/SampleSolution.Web/npm-shrinkwrap.json

@@ -53,7 +53,7 @@
     "lint-staged": "=10.5.3",
     "mocha": "=8.2.1",
     "node-sass": "=5.0.0",
-    "postcss": "=8.2.1",
+    "postcss": "=8.2.10",
     "postcss-cli": "=8.3.1",
     "postcss-scss": "=3.0.4",
     "replace-in-file": "=6.1.0",