chore: release v0.6.1 (#18)

## Summary

Release version 0.6.1, including the pnpm-plugin-skills hook wrapper fix
and simplified checksum removal.

## Related Links

- #17

## Checklist

- [x] Tests updated (or not required).
- [x] Documentation updated (or not required).

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

Author: SoonIter

package.json

@@ -1,7 +1,7 @@
 {
   "name": "skills-package-manager-workspace",
   "private": true,
-  "version": "0.6.0",
+  "version": "0.6.1",
   "packageManager": "pnpm@10.33.0",
   "scripts": {
     "prepare": "simple-git-hooks && pnpm run build",

packages/pnpm-plugin-skills/package.json

@@ -1,6 +1,6 @@
 {
   "name": "pnpm-plugin-skills",
-  "version": "0.6.0",
+  "version": "0.6.1",
   "type": "commonjs",
   "repository": {
     "type": "git",

packages/skills-package-manager/package.json

@@ -1,6 +1,6 @@
 {
   "name": "skills-package-manager",
-  "version": "0.6.0",
+  "version": "0.6.1",
   "type": "module",
   "repository": {
     "type": "git",

website/package.json

@@ -1,7 +1,7 @@
 {
   "name": "website",
   "private": true,
-  "version": "0.6.0",
+  "version": "0.6.1",
   "type": "module",
   "scripts": {
     "dev": "rspress dev",