[ImgBot] Optimize images

*Total -- 13,840.08kb -> 866.47kb (93.74%)

/img/sponsors-img/unnathi.png -- 13,326.51kb -> 444.19kb (96.67%)
/img/tracks/open-innovation.png -- 5.44kb -> 1.06kb (80.52%)
/img/tracks/algorithm.png -- 5.48kb -> 1.13kb (79.36%)
/img/tracks/fintech.png -- 12.83kb -> 5.89kb (54.04%)
/img/tracks/computer-vision.png -- 16.67kb -> 8.19kb (50.9%)
/img/tracks/ar-vr.png -- 15.84kb -> 8.09kb (48.94%)
/img/sponsors-img/progate.png -- 11.58kb -> 6.06kb (47.62%)
/img/tracks/Misce.png -- 16.47kb -> 8.92kb (45.84%)
/img/tracks/blockchain.png -- 31.94kb -> 20.20kb (36.76%)
/img/tracks/future-mobility.png -- 32.21kb -> 22.05kb (31.53%)
/img/tracks/ai.png -- 30.76kb -> 22.73kb (26.13%)
/img/sponsors-img/av8.png -- 51.90kb -> 45.46kb (12.42%)
/img/mhrd-iic.jpg -- 51.87kb -> 46.09kb (11.14%)
/img/sponsors-img/restdb-logo-white.png -- 99.32kb -> 95.43kb (3.91%)
/img/sponsors-img/zubi.jpeg -- 10.53kb -> 10.26kb (2.54%)
/img/nitk/lighthouse.jpg -- 120.74kb -> 120.71kb (0.02%)

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

Author: ImgBotApp