[tlbuild] asymptote 2.87 rebuild

[Robert Alessi]

Just for information, with 2.87, I get this warning about plain.sty

$ ./asy
Welcome to Asymptote version 2.87 (to view the manual, type help)
warning [version]: using possibly incompatible version 2.85 of plain.asy

-- R

On Wed, Feb 28, 2024 at 09:46:29AM -0700, Karl Berry wrote:
> I committed the sources for asy 2.87, and will update the runtime
> shortly.
> 
> Those of you who build asy manually, please do, and commit or send me
> the binaries as usual. All that's needed is the asy executable.
> Please strip it.
> 
> For the CI builds ... Mojca, are you still building asy
> somewhere/somehow, or can you easily restore your builds? I did not see
> it in x86_64-linux, amd64-freebsd, x86_64-darwinlegacy at
> https://build.contextgarden.net/dl/texlive. (I admit I didn't check the
> others.) Help? --thanks, karl.