fix: package.json & package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-SEMVER-3247795

Author: snyk-bot

package-lock.json

@@ -15,7 +15,7 @@
     "react-router-dom": "^6.4.3",
     "react-sizeme": "^3.0.2",
     "sass": "^1.52.1",
-    "semver": "^7.3.8",
+    "semver": "^7.5.2",
     "video.js": "^7.21.1",
     "videojs-seek-buttons": "^3.0.1"
   },