ae.sys.install.msys: Fix digest initialization

ae.sys.install: Remove static constructors

Fix a static constructor dependency cycle, which manifests when
building a Dub application with ae as a dependency and with
--build-mode=singleFile --parallel.

.github/workflows/test.yml: Update ubuntu to 22.04

ae.utils.aa: Fix nested non-copyable types with indirections

dub.*: Bump win32 to 2.107.1

Fix warnings in new compiler versions.

Lock to version matching CI DMD version.

ae.net.x11.package: Simplify the ClientMessage decoder

I'm not sure about the reason for the previous code; I think I may
have been overthinking it. This did, however, require a fix in the
Deimos bindings.

ae.utils.parallelism: Fix unguarded unittest

ae.net.asockets: Add BufferingAdapter

ae.sys.file: Use a shared counter in tempFileNameExtension

Avoid issues due to TID reuse and TLS lifetimes.

ae.net.http.websocket: Fix case-sensitive header comparisons