Making testing of package updates easier

One of the tedious things I do as a package maintainer is re-building
all dependent packages with a new version of a package. My current work
flow is:

- create a testing copr
- build the new package there
- Figure out what packages depend on this package - some flavor of:
dnf repoquery --whatrequires 'soname'/'package'/'etc' --source \
--alldeps | sort -u
- For each of these:
- clone/git pull
- rpmdev-bumpspec -c 'Rebuild for blah' *.spec
- fedpkg srpm
- copr build me/testing --nowait *.src.rpm

how can we move towards something like:

fedpkg test-build-with-all-deps

and then when that passes:

fedpkg build-with-all-deps


I suspect rawhide gating + tests is supposed to help with this but I'm
not sure.