docker: drop libunwind-dev; conflicts with libunwind-14-dev on bookworm

build fail:
  libunwind-14-dev : Conflicts: libunwind-dev
  E: Unable to correct problems, you have held broken packages.

libunwind-dev is a virtual that resolves to libunwind-14-dev on
bookworm; explicitly requesting it conflicts when another package
already pulled in the versioned form. Nothing in our workflows directly
asks for libunwind-dev, so just drop it -- it'll come in transitively.

Author: aidangarske

docker/wolfprovider-test-deps/Dockerfile

@@ -65,7 +65,7 @@ RUN apt-get update \
         libavahi-client-dev libavahi-compat-libdnssd-dev libmemcached-dev \
         libutf8proc-dev libxxhash-dev libkeyutils-dev libcom-err2 \
         libcjose-dev libeac-dev libefivar-dev libncurses5-dev \
-        libncursesw5-dev libunwind-dev libiberty-dev libltdl-dev libltdl7 \
+        libncursesw5-dev libiberty-dev libltdl-dev libltdl7 \
         libperl-dev linux-libc-dev binutils-dev uuid-dev \
         # X11 (x11vnc, qt5network5)
         libx11-dev libxdamage-dev libxext-dev libxfixes-dev libxi-dev \