fix: remove unused get-workspaces from @manypkg/cli

[chalkpe]

• @manypkg/cli > get-workspaces@^0.6.0 > globby@^9.2.0 has high severity vulnerability.
• @manypkg/cli doesn't use get-workspaces since v0.12.0, #51.
• Related issue: #105

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 5d0c6cfbf59434d4b78e55221b015ce413de9e25

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

| Name | Type | | ------------ | ----- | | @manypkg/cli | Patch |

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[ProfXponent]

any plan on releasing this? warning is still present