[ImgBot] Optimize images

*Total -- 2,304.77kb -> 1,932.44kb (16.15%)

/spring-mvc/checkpoint2.png -- 183.27kb -> 71.02kb (61.25%)
/spring-authenticaion/simple-auth.png -- 228.26kb -> 199.00kb (12.82%)
/spring-cloud/res/loadbalance2.png -- 169.61kb -> 147.91kb (12.8%)
/spring-authenticaion/res/filters.png -- 43.09kb -> 37.64kb (12.66%)
/spring-cloud/res/ribbon-load-balancing.png -- 171.03kb -> 149.67kb (12.49%)
/spring-cloud/res/eureka-server.png -- 126.54kb -> 110.89kb (12.37%)
/spring-cloud/res/loadbalance.png -- 183.01kb -> 160.51kb (12.3%)
/spring-cloud/res/kong.png -- 341.16kb -> 299.26kb (12.28%)
/spring-cloud/Screenshot from 2024-12-31 19-05-05.png -- 341.16kb -> 299.26kb (12.28%)
/spring-cloud/res/gateway.png -- 188.21kb -> 165.41kb (12.11%)
/Javaproxies/summary.png -- 329.42kb -> 291.86kb (11.4%)

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