Make qemu-eaas-2.5.0-bwfla5 available as container image

There are many fans of "qemu-eaas-2.5.0-bwfla5" (from eaas/eaas-appserver:pre-gnutls-update@sha256:a96c1ac7adb599d1eff0e465fd762bbb05b80f6750ec98c060fd1fac13a9df3e, temporarily packaged as AppImage in https://github.com/rafaelgieschke/2023-old-qemu-appimage/blob/main/.github/workflows/build.yaml, https://github.com/rafaelgieschke/2023-old-qemu-appimage/releases/tag/main-nightly), which reportedly can start Windows 2000.

$ ./qemu-eaas-2.5.0-bwfla5.AppImage qemu-system-x86_64 -version

QEMU emulator version 2.5.0 (Debian 1:2.5.0+dfsg-0bwfla5+xenial), Copyright (c) 2003-2008 Fabrice Bellard

Source might be in https://github.com/eaas-framework/qemu.