fix(deps): enforece ember-decorators@^3.1.2

#66 (comment)

package.json

@@ -21,13 +21,13 @@
     "test:all": "ember try:each"
   },
   "dependencies": {
-    "@ember-decorators/object": "^3.0.0",
-    "@ember-decorators/utils": "^3.1.1",
+    "@ember-decorators/object": "^3.1.2",
+    "@ember-decorators/utils": "^3.1.2",
     "ember-cli-babel": "^7.1.2",
     "ember-intl": "^4.0.0-beta.3"
   },
   "devDependencies": {
-    "@ember-decorators/babel-transforms": "^3.1.1",
+    "@ember-decorators/babel-transforms": "^3.1.2",
     "@ember/optional-features": "^0.7.0",
     "@semantic-release/commit-analyzer": "^6.1.0",
     "@semantic-release/git": "^7.0.5",

yarn.lock

@@ -696,7 +696,7 @@
     lodash "^4.17.10"
     to-fast-properties "^2.0.0"
 
-"@ember-decorators/babel-transforms@^3.1.1":
+"@ember-decorators/babel-transforms@^3.1.2":
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/@ember-decorators/babel-transforms/-/babel-transforms-3.1.2.tgz#f4e0646b1204a64845a1c739a88b406b560e6243"
   integrity sha512-bQwgTjSGAquZKpr2ojewpaxxlXCJ8DfqBBBs+JcpnqDF+qZ12Ssgmr8BSSfuKo+wmYwdt2FzyTxQCJL3O5XC/g==
@@ -706,15 +706,15 @@
     ember-cli-babel-plugin-helpers "^1.0.0"
     ember-cli-version-checker "^2.1.0"
 
-"@ember-decorators/object@^3.0.0":
+"@ember-decorators/object@^3.1.2":
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/@ember-decorators/object/-/object-3.1.2.tgz#57945fe74274ad26721d90c187f00ec38bb7454c"
   integrity sha512-HRzZw6ezkXPMpWMswj/uxzai5ymNQTyd6JPRhrXS4QpYlsJGYk7jgJsc3CzmiTpwGc54WI0P6igqHaGfjBBzPA==
   dependencies:
     "@ember-decorators/utils" "^3.1.2"
     ember-cli-babel "^7.1.3"
 
-"@ember-decorators/utils@^3.1.1", "@ember-decorators/utils@^3.1.2":
+"@ember-decorators/utils@^3.1.2":
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/@ember-decorators/utils/-/utils-3.1.2.tgz#ab15211577b4267ba5d5e35e704206738a6aa6ff"
   integrity sha512-1+i1+BHz1QXW5zzsJTEmR+wVcLm3k1bTb1a37k1X7XXSxDyU7MRo1CnafR4H+70qKlJPnfxyeWd9jHpNnuLrSQ==