Fix code scanning alert - Missing rate limiting

[alex4108]

Tracking issue for:

• https://github.com/alex4108/scoreboard/security/code-scanning/12
• https://github.com/alex4108/scoreboard/security/code-scanning/11
• https://github.com/alex4108/scoreboard/security/code-scanning/10
• https://github.com/alex4108/scoreboard/security/code-scanning/9
• https://github.com/alex4108/scoreboard/security/code-scanning/8
• https://github.com/alex4108/scoreboard/security/code-scanning/7
• https://github.com/alex4108/scoreboard/security/code-scanning/6
• https://github.com/alex4108/scoreboard/security/code-scanning/5
• https://github.com/alex4108/scoreboard/security/code-scanning/4
• https://github.com/alex4108/scoreboard/security/code-scanning/3