chore(deps): pin dependencies

Author: renovate-bot

package.json

@@ -43,8 +43,8 @@
 		"@babel/core": "7.5.5",
 		"@babel/node": "7.5.5",
 		"@babel/preset-env": "7.5.5",
-		"@semantic-release/changelog": "^3.0.4",
-		"@semantic-release/git": "^7.0.16",
+		"@semantic-release/changelog": "3.0.4",
+		"@semantic-release/git": "7.0.16",
 		"copy-webpack-plugin": "5.0.4",
 		"cz-conventional-changelog": "3.0.2",
 		"eslint": "6.1.0",