Summary:
* Add valgrind test to nightly CircleCI (in case it can catch something that
ASAN/UBSAN does not)
* Add clang13+asan+ubsan+folly test to nightly CircleCI, for broader testing
* Consolidate many copies of ASAN_OPTIONS= while also allowing it to be
inherited from parent environment rather than always overridden.
* Move UBSAN exclusion from Makefile into options_settable_test.cc

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9859

Test Plan: CI

Reviewed By: jay-zhuang

Differential Revision: D35730903

Pulled By: pdillinger

fbshipit-source-id: 6f5464034e8115f9a07f6f7aec1de9219ec2837c