[ImgBot] Optimize images

*Total -- 208.62kb -> 189.36kb (9.23%)

/backend/plugins/payment_api/src/public/images/payments/pocket.png -- 10.67kb -> 7.37kb (30.98%)
/backend/plugins/payment_api/src/public/images/payments/qpay.png -- 11.64kb -> 8.76kb (24.73%)
/backend/plugins/payment_api/src/public/images/payments/qpayQuickqr.png -- 11.64kb -> 8.76kb (24.73%)
/backend/plugins/payment_api/src/public/images/payments/socialpay.png -- 9.50kb -> 8.05kb (15.17%)
/backend/plugins/payment_api/src/public/images/payments/khanbank.png -- 102.58kb -> 95.03kb (7.36%)
/backend/plugins/payment_api/src/public/images/payments/stripe.png -- 8.31kb -> 7.81kb (5.98%)
/backend/plugins/payment_api/src/public/images/payments/wechatpay.png -- 5.66kb -> 5.46kb (3.61%)
/backend/plugins/payment_api/src/public/images/payments/storepay.png -- 7.74kb -> 7.50kb (3.14%)
/backend/plugins/payment_api/src/public/images/payments/minupay.png -- 40.87kb -> 40.61kb (0.64%)

Signed-off-by: ImgBotApp <ImgBotHelp@gmail.com>

Author: ImgBotApp