Upgrade grunt devDependency from ^1.5.3 to ^1.6.1 across all packages

[Copilot]

grunt ^1.5.3 has known issues; this upgrades all packages to ^1.6.1.

Changes

• shared/package.json, ts-plugin/package.json, eslint-ts-plugin/package.json, package.json (root): bump grunt devDependency ^1.5.3 → ^1.6.1
• common/config/rush/npm-shrinkwrap.json: regenerated via rush update --full; grunt now resolves to 1.6.1

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[BUG] The plugins currently have a dependency on grunt ^1.5.3 which has known issues</issue_title>
<issue_description>Review the dependency on grunt 1.5.3 and upgrade to 1.6.1, consider upgrading to at least grunt 1.6.1 and the related dependencies for all packages.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [BUG] The plugins currently have a dependency on grunt ^1.5.3 which has known issues #411

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[Copilot]

Pull request overview

This pull request upgrades the grunt devDependency from ^1.5.3 to ^1.6.1 across all packages in the monorepo to address known issues with grunt 1.5.3. The upgrade was performed consistently and the Rush lockfile (npm-shrinkwrap.json) was properly regenerated.

Changes:

• Updated grunt version from ^1.5.3 to ^1.6.1 in all four package.json files (root, shared, ts-plugin, eslint-ts-plugin)
• Regenerated npm-shrinkwrap.json via rush update --full, which also updated transitive dependencies to their latest compatible versions

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
package.json	Updated root package grunt devDependency from ^1.5.3 to ^1.6.1
shared/package.json	Updated shared package grunt devDependency from ^1.5.3 to ^1.6.1
ts-plugin/package.json	Updated ts-plugin grunt devDependency from ^1.5.3 to ^1.6.1
eslint-ts-plugin/package.json	Updated eslint-ts-plugin grunt devDependency from ^1.5.3 to ^1.6.1
common/config/rush/npm-shrinkwrap.json	Regenerated lockfile with grunt 1.6.1, updated package integrity hashes, and transitive dependency updates (@typescript-eslint 8.56.0→8.56.1, minimatch 9.0.6→10.2.2, caniuse-lite minor update)

Files not reviewed (1)

• common/config/rush/npm-shrinkwrap.json: Language not supported