chore(deps): update dependency semantic-release to v15.4.0 (#229)

Author: renovate[bot]

package.json

@@ -58,7 +58,7 @@
     "rollup-plugin-node-resolve": "3.3.0",
     "rollup-plugin-replace": "2.0.0",
     "rollup-plugin-uglify": "3.0.0",
-    "semantic-release": "15.3.1",
+    "semantic-release": "15.4.0",
     "typescript": "2.8.3"
   },
   "keywords": [

yarn.lock

@@ -4462,9 +4462,9 @@ sax@^1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
 
-semantic-release@15.3.1:
-  version "15.3.1"
-  resolved "https://registry.yarnpkg.com/semantic-release/-/semantic-release-15.3.1.tgz#5acc4ae55aaed68c89d69056bfad3698e671083e"
+semantic-release@15.4.0:
+  version "15.4.0"
+  resolved "https://registry.yarnpkg.com/semantic-release/-/semantic-release-15.4.0.tgz#4254cb5e93ce1ae6e6327f14aee377318823b5b8"
   dependencies:
     "@semantic-release/commit-analyzer" "^5.0.0"
     "@semantic-release/error" "^2.2.0"