chore(deps): update dependency semantic-release to v12.2.1

Author: renovate-bot

package.json

@@ -31,7 +31,7 @@
     "@types/node": "9.3.0",
     "@types/yargs": "10.0.1",
     "graphql-config": "1.1.6",
-    "semantic-release": "12.2.0",
+    "semantic-release": "12.2.1",
     "tslint": "5.9.1",
     "typescript": "2.6.2"
   },

yarn.lock

@@ -687,6 +687,18 @@ execa@^0.8.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
+execa@^0.9.0:
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-0.9.0.tgz#adb7ce62cf985071f60580deb4a88b9e34712d01"
+  dependencies:
+    cross-spawn "^5.0.1"
+    get-stream "^3.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
 extend@~3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
@@ -1681,9 +1693,9 @@ safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0,
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
-semantic-release@12.2.0:
-  version "12.2.0"
-  resolved "https://registry.yarnpkg.com/semantic-release/-/semantic-release-12.2.0.tgz#39512feba0dcb7d055738019b7e4717f6f80c0fd"
+semantic-release@12.2.1:
+  version "12.2.1"
+  resolved "https://registry.yarnpkg.com/semantic-release/-/semantic-release-12.2.1.tgz#13f5abf35149409d25c0e97817f729fd1eacbd6b"
   dependencies:
     "@semantic-release/commit-analyzer" "^5.0.0"
     "@semantic-release/error" "^2.1.0"
@@ -1695,7 +1707,7 @@ semantic-release@12.2.0:
     cosmiconfig "^3.1.0"
     debug "^3.1.0"
     env-ci "^1.0.0"
-    execa "^0.8.0"
+    execa "^0.9.0"
     get-stream "^3.0.0"
     git-log-parser "^1.2.0"
     lodash "^4.0.0"