fix: update version to 2.0.0 and modify deploy:canary script

Author: zereight

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@zereight/mcp-gitlab",
-  "version": "2.0.0-canary.0",
+  "version": "2.0.0",
   "description": "MCP server for using the GitLab API",
   "license": "MIT",
   "author": "zereight",
@@ -21,7 +21,7 @@
     "dev": "npm run build && node build/index.js",
     "watch": "tsc --watch",
     "deploy": "npm publish --access public",
-    "deploy:canary": "npm version prerelease --preid=canary --no-git-tag-version",
+    "deploy:canary": "npm publish --access public --tag canary",
     "generate-tools": "npx ts-node scripts/generate-tools-readme.ts",
     "changelog": "auto-changelog -p",
     "test": "node test/validate-api.js",