Cathay Pacific and Hong Kong Airlines have said the HK$2.6 billion (US$335 million) in financial aid promised by the Hong Kong government and the city’s airport for the ailing aviation industry was not enough.Hit by protests and now the coronavirus pandemic, Cathay said on Tuesday it needed “significantly more” government help than it was getting, while HKA said airlines were still “struggling to survive”.That help included a large portion of the HK$630 million set aside by authorities to…