exposed timestamp of last time the bot was updated via promethius metrics.
also fix tickerboards.
time_of_last_update{guild="High Life Lounge",ticker="Cryptos",type="board"} 1.6298428936570618e+09
time_of_last_update{guild="High Life Lounge",ticker="PFG",type="ticker"} 1.6298428956914463e+09
time_of_last_update{guild="High Life Lounge",ticker="ethereum",type="gas"} 1.6298428947920108e+09
time_of_last_update{guild="High Life Lounge",ticker="ethereum-0x1f9840a85d5af5bf1d1762f925bdaddc4201f984",type="holders"} 1.6298428953156893e+09
time_of_last_update{guild="High Life Lounge",ticker="ethereum-0x1f9840a85d5af5bf1d1762f925bdaddc4201f984",type="token"} 1.6298428945122387e+09
exposed timestamp of last time the bot was updated via promethius metrics.
also fix tickerboards.