While at it, also adjust the repository URL in the `update-patches.sh`
script: We no longer call it msys2/Cygwin but msys2/msys2-runtime.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Provides and conflicts with msys2-runtime, so can be used to replace it if wanted.
Keep this as a separate package to test for regressions in cygwin
and to have (in theory) a runtime that supports 32bit in the repo.
There is no guarantee for how long we are going to keep this.