4.3.1

• Add :BRAKEMAN_SAFE_LITERAL to represent known-safe literals
• Handle Array#map and Array#each over literal arrays (#1208 / #1224)
• Use safe literal when accessing literal hash with unknown key (#1213)
• Allow symbolize_keys to be called on params in SQL (Jacob Evelyn)
• Improve handling of conditionals in shell commands (Jacob Evelyn)
• Avoid deprecated use of ERB in Ruby 2.6 (Koichi ITO)
• Ignore Object#freeze, use the target instead (#1211)
• Ignore foreign_key calls in SQL (#1202)
• Handle included calls outside of classes/modules (#1209)
• Fix error when setting line number in implicit renders (#1210)