feat: upgrade version to v1.6.0 (#939)

* feat: upgrade version to v1.6.0

- Update version number to 1.6.0 in all package.json files
- Add v1.6.0 placeholder in CHANGELOG.md and CHANGELOG_EN.md

* docs: update release skill to use bilingual format (zh + en collapsed)

* chore: upgrade dependencies

* fix: correct CHANGELOG placeholder position and update version-upgrade skill

* docs: update version-upgrade skill with correct CHANGELOG placeholder position

worker/package.json

@@ -1,6 +1,6 @@
 {
   "name": "cloudflare_temp_email",
-  "version": "1.5.0",
+  "version": "1.6.0",
   "private": true,
   "type": "module",
   "scripts": {
@@ -11,23 +11,23 @@
     "build": "wrangler deploy --dry-run --outdir dist --minify"
   },
   "devDependencies": {
-    "@cloudflare/workers-types": "^4.20260310.1",
+    "@cloudflare/workers-types": "^4.20260404.1",
     "@eslint/js": "9.39.1",
-    "@types/node": "^25.4.0",
+    "@types/node": "^25.5.2",
     "eslint": "9.39.1",
     "globals": "^16.5.0",
-    "typescript-eslint": "^8.57.0",
-    "wrangler": "^4.72.0"
+    "typescript-eslint": "^8.58.0",
+    "wrangler": "^4.80.0"
   },
   "dependencies": {
     "@aws-sdk/client-s3": "3.888.0",
     "@aws-sdk/s3-request-presigner": "3.888.0",
     "@simplewebauthn/server": "13.2.3",
-    "hono": "^4.12.7",
+    "hono": "^4.12.10",
     "jsonpath-plus": "^10.4.0",
     "mimetext": "^3.0.28",
-    "postal-mime": "^2.7.3",
-    "resend": "^6.9.3",
+    "postal-mime": "^2.7.4",
+    "resend": "^6.10.0",
     "telegraf": "4.16.3",
     "worker-mailer": "^1.2.1"
   },