[ImgBot] Optimize images

*Total -- 508.50kb -> 469.59kb (7.65%)

/graphs/recap-time-dev-homepage/response-time-day.png -- 10.66kb -> 4.30kb (59.67%)
/graphs/golinks/response-time-day.png -- 9.42kb -> 4.42kb (53.05%)
/graphs/static-cdn-for-our-websites/response-time-day.png -- 9.21kb -> 4.49kb (51.24%)
/graphs/vaultwarden/response-time-day.png -- 3.71kb -> 2.42kb (34.6%)
/graphs/golinks/response-time-week.png -- 15.69kb -> 12.92kb (17.67%)
/graphs/vaultwarden/response-time-week.png -- 15.08kb -> 12.98kb (13.97%)
/graphs/recap-time-dev-homepage/response-time-week.png -- 16.43kb -> 14.25kb (13.26%)
/graphs/vaultwarden/response-time-month.png -- 20.87kb -> 18.97kb (9.11%)
/graphs/golinks/response-time-month.png -- 20.90kb -> 19.34kb (7.44%)
/graphs/recap-time-dev-homepage/response-time.png -- 49.53kb -> 46.15kb (6.84%)
/graphs/golinks/response-time.png -- 44.90kb -> 42.83kb (4.6%)
/graphs/static-cdn-for-our-websites/response-time-week.png -- 14.53kb -> 14.01kb (3.61%)
/graphs/golinks/response-time-year.png -- 43.94kb -> 42.84kb (2.5%)
/graphs/static-cdn-for-our-websites/response-time.png -- 61.48kb -> 60.05kb (2.32%)
/graphs/recap-time-dev-homepage/response-time-year.png -- 52.92kb -> 51.96kb (1.82%)
/graphs/recap-time-dev-homepage/response-time-month.png -- 22.62kb -> 22.22kb (1.78%)
/graphs/static-cdn-for-our-websites/response-time-year.png -- 63.88kb -> 62.86kb (1.61%)
/graphs/static-cdn-for-our-websites/response-time-month.png -- 32.73kb -> 32.58kb (0.45%)

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