chore: bump version to 1.6.6

[Uğur Oruç (Ketcap)]

[AI code generation]

Summary

• Bump version to 1.6.6 for release.

Changes since v1.6.5:

• feat(private-spaces): add private spaces endpoints, tools and organization field (ORB-1919) (feat(private-spaces): add private spaces endpoints, tools and organization field (ORB-1919) #74)

Test plan

• npm run lint passes (tsc + eslint)
• npx prettier --check passes on changed files (package.json, package-lock.json)

[Copilot]

Pull request overview

Bumps the SDK package version for the @makehq/sdk release, aligning the published metadata with the next patch release.

Changes:

• Update package.json version from 1.6.5 to 1.6.6.
• Update package-lock.json version fields from 1.6.5 to 1.6.6 (root + packages[""]).

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
package.json	Updates the package version to 1.6.6 for the release.
package-lock.json	Keeps lockfile metadata in sync by bumping the version to 1.6.6.

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