chore(deps-dev): update conventional-changelog requirement

Updates the requirements on [conventional-changelog](https://github.com/conventional-changelog/conventional-changelog) to permit the latest version.
- [Release notes](https://github.com/conventional-changelog/conventional-changelog/releases)
- [Commits](https://github.com/conventional-changelog/conventional-changelog/compare/conventional-changelog@3.0.6...conventional-changelog@3.1.3)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Author: dependabot-support

package.json

@@ -50,7 +50,7 @@
     "@semantic-release/exec": "3.3.2",
     "@semantic-release/git": "7.0.8",
     "@semantic-release/github": "5.2.10",
-    "conventional-changelog": "3.0.6",
+    "conventional-changelog": "3.1.3",
     "semantic-release": "^15.10.6",
     "travis-deploy-once": "^5.0.9"
   },