Bump postcss-discard-comments from 5.0.3 to 5.1.0

Bumps [postcss-discard-comments](https://github.com/cssnano/cssnano) from 5.0.3 to 5.1.0.
- [Release notes](https://github.com/cssnano/cssnano/releases)
- [Commits](https://github.com/cssnano/cssnano/compare/[email protected]@5.1.0)

---
updated-dependencies:
- dependency-name: postcss-discard-comments
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -21,7 +21,7 @@
 	"dependencies": {
 		"faucet-pipeline-core": "^1.6.1",
 		"postcss": "~8.4.6",
-		"postcss-discard-comments": "~5.0.3",
+		"postcss-discard-comments": "~5.1.0",
 		"postcss-import": "~14.0.2",
 		"postcss-message-helpers": "~2.0.0",
 		"postcss-normalize-whitespace": "~5.0.4"