There are a number of incorrect assumptions here, including the basic premise of your question: bats absolutely do not spread COVID-19. This is a misunderstanding that has unfortunately gained a lot of traction amid the pandemic hysteria, and one that only serves to deepen the public's mistrust of bats and encourage people to harm or kill wildlife that pose no threat to anyone.
It's true that SARS-CoV-2 is similar to other bat coronaviruses, and it's not implausible that it could have originated there, but that's literally all we know at this point - we haven't even definitively established the true origin of the virus, much less unraveled the mystery of how it spread to humans.
What is clear, though, is that it's not being spread by bats. If nothing else, the rampant speculation about possible intermediate hosts suggests that it didn't come about merely as a result of direct contact between humans and bats, but through a much more circuitous pathway involving a specific combination of hosts and conditions that favored the jump to humans. Going beyond that, the idea that nectar-feeding bats could somehow "contaminate" the flowers, and that this in turn could somehow lead to live viruses showing up in honey produced by bees that visited those flowers, is mistaken on several levels.
You might be interested in this article, which gives an overview of what we currently know about the virus' origins: https://www.nature.com/articles/d41586-020-01449-8.
In short, there are a lot of things to be concerned about when it comes to the spread of the pandemic, but one thing you definitely don't need to worry about is the possibility of contracting SARS-CoV-2 from bat-pollinated flowers.