Bump minimist and pxt-common-packages

Bumps [minimist](https://github.com/minimistjs/minimist) to 1.2.8 and updates ancestor dependency [pxt-common-packages](https://github.com/Microsoft/pxt-common-packages). These dependencies need to be updated together.


Updates `minimist` from 1.2.5 to 1.2.8
- [Release notes](https://github.com/minimistjs/minimist/releases)
- [Changelog](https://github.com/minimistjs/minimist/blob/main/CHANGELOG.md)
- [Commits](https://github.com/minimistjs/minimist/compare/v1.2.5...v1.2.8)

Updates `pxt-common-packages` from 9.0.1 to 9.5.12
- [Release notes](https://github.com/Microsoft/pxt-common-packages/releases)
- [Commits](https://github.com/Microsoft/pxt-common-packages/compare/v9.0.1...v9.5.12)

---
updated-dependencies:
- dependency-name: minimist
  dependency-type: indirect
- dependency-name: pxt-common-packages
  dependency-type: direct:production
...

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

package.json

@@ -45,7 +45,7 @@
         "typescript": "4.2.3"
     },
     "dependencies": {
-        "pxt-common-packages": "9.0.1",
+        "pxt-common-packages": "9.5.12",
         "pxt-core": "7.0.22"
     }
 }