build: bump vuex-class from 0.3.0 to 0.3.1

Bumps [vuex-class](https://github.com/ktsn/vuex-class) from 0.3.0 to 0.3.1.
- [Release notes](https://github.com/ktsn/vuex-class/releases)
- [Commits](ktsn/vuex-class@v0.3.0...v0.3.1)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -65,7 +65,7 @@
     "vue-class-component": "^6.2.0",
     "vue-clipboards": "^1.2.4",
     "vue-i18n": "^7.6.0",
-    "vuex-class": "^0.3.0",
+    "vuex-class": "^0.3.1",
     "xmlify": "^1.1.0"
   },
   "devDependencies": {

yarn.lock

@@ -9184,9 +9184,9 @@ vue@^2.5.13:
   version "2.5.16"
   resolved "https://registry.yarnpkg.com/vue/-/vue-2.5.16.tgz#07edb75e8412aaeed871ebafa99f4672584a0085"
 
-vuex-class@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/vuex-class/-/vuex-class-0.3.0.tgz#25047ab042580fd4ff3e64cc76603ac217c9190d"
+vuex-class@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/vuex-class/-/vuex-class-0.3.1.tgz#3c0b946bcff4cf2be1904de5b0cab1a3dd5c41d5"
 
 vuex@^3.0.1:
   version "3.0.1"