chore(deps-dev): bump postcss in /apps/myanmar_calendar (#55)

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.23 to 8.4.31.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.23...8.4.31)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

apps/myanmar_calendar/package.json

@@ -18,7 +18,7 @@
     "burma-calendar": "workspace:*",
     "eslint": "8.40.0",
     "eslint-config-next": "13.4.1",
-    "postcss": "^8.4.23",
+    "postcss": "^8.4.31",
     "tailwindcss": "^3.3.2",
     "typescript": "^5.0.4"
   },