Revert "graphviz: update to 2.42.2."

[ndowens]

Reverting to older version, until I can solve a discovered link issue that was mentioned and I was able to reproduce

This reverts commit f0fb795.

[ndowens]

I've been working on getting the new version to work.
We have two options, I can remove the problem, is that it generates header during build, so:

1. No cross
2. We use the header from this version into the newer version.

[ndowens]

2nd method does allow cross-builds. https://termbin.com/mf5j is the header that is suppose to be generated during build, which came from the older version by default, not created at build time.

Also installed locally and no linking errors either.

[pullmoll]

It should be possible to add build_helper="qemu" to the template and patch this line to

        qemu-${XBPS_TARGET_QEMU_MACHINE}-static ./mkdefs$(EXEEXT) gdefs.h < $(top_srcdir)/lib/gvpr/gprdata

in e.g. pre_configure() and inside a block

        if [ "$CROSS_BUILD" ]; then
                vsed -i lib/gvpr/Makefile.am -e "s;\./mkdefs;qemu-${XBPS_TARGET_QEMU_MACHINE}-static &;"
        fi

Then cross builds will run mkdefs under qemu.

[jnbr]

switch to cmake was reverted, graphviz was update to 2.44.0.