Add regression test for mixed workspace and semver dependency references in bumping

[Copilot]

This adds coverage for the discussion #940 scenario: the same local dependency is referenced via workspace: in one dependency type and a numeric semver range in another.
The new test ensures bumping updates only the numeric range while preserving the workspace: reference.

• What was added

  • New bumpInMemory regression case in packages/beachball/src/__tests__/bump/bumpInMemory.test.ts for:
    • devDependencies.local-dep = workspace:^
    • peerDependencies.local-dep = ^3.6.1

• Behavior now asserted

  • local-dep bump (3.6.1 -> 3.7.0) propagates to dependent package version bump.
  • peerDependencies.local-dep updates to ^3.7.0.
  • devDependencies.local-dep remains workspace:^ (not rewritten to numeric).

'package-with-deps': {
  devDependencies: { 'local-dep': 'workspace:^' },
  peerDependencies: { 'local-dep': '^3.6.1' },
}