Support installing 32bit sbcl/sbcl-bin on 64bit linux

[3b]

For CI, I'd like to test some code on both 32 and 64bit lisps.

curl -L https://raw.githubusercontent.com/roswell/roswell/master/scripts/install-for-ci.sh | sh works for LISP=ccl32, but LISP=sbcl32 and LISP=clisp32 error.

Environment

Github actions ubuntu-latest

How to reproduce the issue

    - name: install roswell
      env:
       LISP: sbcl32 # or clisp32
      run: curl -L https://raw.githubusercontent.com/roswell/roswell/master/scripts/install-for-ci.sh | sh

Expected behavior

successful install of 32bit sbcl or clisp

Actual result

Roswell has been installed.
Installing sbcl32...
Installing sbcl-bin...

...

Making core for Roswell...
'sbcl32' is not a valid target for 'install' -- It should be a name of either:
+ a quicklisp-installable system
+ a common lisp installation 
##[error]Process completed with exit code 1.

[snmsts]

I'd consider.