WebKit 2.40 update for buster

[Alberto Garcia]

On Thu, Jul 06, 2023 at 08:27:51PM +0300, Adrian Bunk wrote:
> A recent compiler is always already available:
> 
> Debian *stable distributions (including LTS) already add a new LLVM
> major version annually since that is required for the latest Rust
> every new Firefox ESR branch needs.

Thanks, I didn't realize that. But yes, as you say, the compiler is
not the only problem.

Berto