deprecatedになってたのでnode versionを上げる

aws-ssm-parameters/action.yml

@@ -6,5 +6,5 @@ inputs:
     description: Parameter keys and env var names (YAML)
     required: true
 runs:
-  using: 'node16'
+  using: 'node20'
   main: 'dist/index.js'

deploybot/action.yml

@@ -36,5 +36,5 @@ inputs:
     required: false
     default: ''
 runs:
-  using: 'node16'
+  using: 'node20'
   main: 'dist/index.js'

docker-image-tag/action.yml

@@ -10,5 +10,5 @@ inputs:
     required: false
     default: auto
 runs:
-  using: 'node16'
+  using: 'node20'
   main: 'dist/index.js'

package.json

@@ -4,7 +4,7 @@
   "private": true,
   "main": "index.js",
   "engines": {
-    "node": "16"
+    "node": "20"
   },
   "scripts": {
     "format": "prettier --write '**/*.{js,ts}'",