chore(package): update @semantic-release/github to version 7.0.0

Closes #157

Author: greenkeeper[bot]

package.json

@@ -48,7 +48,7 @@
     "@semantic-release/changelog": "^3.0.5",
     "@semantic-release/commit-analyzer": "^6.3.3",
     "@semantic-release/git": "^7.0.18",
-    "@semantic-release/github": "^5.5.5",
+    "@semantic-release/github": "^7.0.0",
     "@semantic-release/npm": "^5.3.4",
     "@semantic-release/release-notes-generator": "^7.3.2",
     "@size-limit/preset-big-lib": "^2.1.6",