CVE-2023-5764: Ansible template injection vulnerability

The vulnerability stems from improper handling of 'unsafe' markers during templating operations. The patched functions all show modifications where unsafe data processing was strengthened by adding _strip_unsafe calls or blocking unsafe method execution. These functions directly handle template rendering, serialization, and conditional evaluation - the key areas where unsafe designation could be lost per CVE-2023-5764's description. The commit diffs demonstrate explicit security fixes in these specific functions across JSON/YAML serialization paths and template evaluation logic.