databases/pgloader3: update esrap package to 2021-10-20

the older esrap package cannot be built with a recent sbcl compiler,
thus rendering pgloader3 unbuildable. this update bumps esrap to
a recent version which is compatible with our current sbcl compiler.

PR: 261319
Approved by: maintainer-timeout

(cherry picked from commit d678920296faff5c05f97f45226f3dd930cc18c2)