fix: update dependency semantic-release to v15.9.11

package.json

@@ -130,7 +130,7 @@
     "mockdate": "2.0.2",
     "nock": "9.6.1",
     "prettier": "1.14.2",
-    "semantic-release": "15.9.9"
+    "semantic-release": "15.9.11"
   },
   "files": [
     "bin/config-validator.js",

yarn.lock

@@ -1990,6 +1990,18 @@ execa@^0.7.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
+execa@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
+  dependencies:
+    cross-spawn "^6.0.0"
+    get-stream "^4.0.0"
+    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"
+
 exit@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/exit/-/exit-0.1.2.tgz#0632638f8d877cc82107d30a0fff1a17cba1cd0c"
@@ -6397,9 +6409,9 @@ sax@^1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
 
-semantic-release@15.9.9:
-  version "15.9.9"
-  resolved "https://registry.yarnpkg.com/semantic-release/-/semantic-release-15.9.9.tgz#967f0a5eea4c297d8052a6f4cb91b2e20aa00496"
+semantic-release@15.9.11:
+  version "15.9.11"
+  resolved "https://registry.yarnpkg.com/semantic-release/-/semantic-release-15.9.11.tgz#089a4b419aac3d4b363f5ebc8be2829085d9bef7"
   dependencies:
     "@semantic-release/commit-analyzer" "^6.0.0"
     "@semantic-release/error" "^2.2.0"
@@ -6410,7 +6422,7 @@ semantic-release@15.9.9:
     cosmiconfig "^5.0.1"
     debug "^3.1.0"
     env-ci "^2.0.0"
-    execa "^0.10.0"
+    execa "^1.0.0"
     figures "^2.0.0"
     find-versions "^2.0.0"
     get-stream "^4.0.0"