chore(deps): update dependency @semantic-release/github to v5.5.8

Author: renovate-bot

package-lock.json

@@ -37,7 +37,7 @@
     "@commitlint/prompt-cli": "7.6.1",
     "@semantic-release/changelog": "3.0.6",
     "@semantic-release/git": "7.0.18",
-    "@semantic-release/github": "5.5.5",
+    "@semantic-release/github": "5.5.8",
     "@semantic-release/npm": "5.3.5",
     "chai": "4.2.0",
     "eslint": "5.16.0",