Bump postcss-discard-comments from 7.0.6 to 8.0.0

Bumps [postcss-discard-comments](https://github.com/cssnano/cssnano) from 7.0.6 to 8.0.0.
- [Release notes](https://github.com/cssnano/cssnano/releases)
- [Commits](https://github.com/cssnano/cssnano/compare/postcss-discard-comments@7.0.6...postcss-discard-comments@8.0.0)

---
updated-dependencies:
- dependency-name: postcss-discard-comments
  dependency-version: 8.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -24,7 +24,7 @@
     "postcss-cli": "^11.0.1",
     "postcss-custom-media": "^12.0.1",
     "postcss-custom-selectors": "^9.0.1",
-    "postcss-discard-comments": "^7.0.6",
+    "postcss-discard-comments": "^8.0.0",
     "postcss-each": "^1.1.0",
     "postcss-easy-import": "^4.0.0",
     "postcss-mixins": "^12.1.2",