tests: add a fuzzer for process_audit_string
(cherry picked from commit 090a20cfaf3d5439fa39c5d8df473b0cfef181dd)
Resolves: #1764560
patch_name: 0259-tests-add-a-fuzzer-for-process_audit_string.patch
present_in_specfile: true
location_in_specfile: 259
squash_commits: true