make-*: include musl build in make-binaries
Ctr actions: use github runners to provide bootstrap erlang
- adjust make-binaries script to use github runners' installed erlang
for bootstrapping
- this reduces the need to build an unnecessary toolchain for glibc
based binaries
If the installer is invoked without superuser privileges, warn the user,
ask for the installation prefix, and perform a local installation on
confirmation.
Use tar's --skip-old-files option for the data directory (/opt/ejabberd)
only. Files in the code directory (/opt/ejabberd-$version) should be
overridden on upgrade.
The tools/make-installers script creates command line installers for
Linux/x64 and Linux/arm64 systems using the archives built by the
tools/make-binaries script.
