ancient: update to 2.1.1.

2.1.1

Small hotfix release:

    Removing test-files from dist
    Removing VS2022 compiler warnings
    Making builds/prs gated on warnings. Added VS2022 to the gate

2.1.0

Added new decompressors:

    Compact (Unix)
    Compress (Unix)
    Freeze (Unix)
    LOB Compressor a.k.a. multipac. all 6 modes (Atari)
    Pack (Unix)
    Quasijarus Strong compression (FreeBSD)
    PX20 support - fast bypass of passwords (Amiga)
    DMS improvements for broken files - auto fixup (Amiga)
    XPK PPMQ (This concludes XPK, yay!) (Amiga)
    SCO Compress LZH (Unix)

Other improvements:

    XPK Unimplemented for detecting missing-formats
    Test Framework incl. test files
    Memory safety fixes
    Improved commandline
    Zip & Lzh cleanup (they are not part of the build anymore)

(wiz)