update CHANGELOG.md for v0.12.10

CHANGELOG.md

@@ -1,4 +1,13 @@
 # Changelog
+## [v0.12.10](https://github.com/itchyny/gojq/compare/v0.12.9..v0.12.10) (2022-12-01)
+* fix `break` in `try`-`catch` query (`label $x | try break $x catch .`)
+* fix path value validation for `getpath` function (`path(getpath([[0]][0]))`)
+* fix path value validation for custom iterator functions
+* fix `walk` function with argument emitting multiple values (`[1],{x:1} | walk(.,0)`)
+* fix `@csv`, `@tsv`, `@sh` to escape the null character (`["\u0000"] | @csv,@tsv,@sh`)
+* improve performance of assignment operator (`=`), update-assignment operator (`|=`),
+  `map_values`, `del`, `delpaths`, `walk`, `ascii_downcase`, and `ascii_upcase` functions
+
 ## [v0.12.9](https://github.com/itchyny/gojq/compare/v0.12.8..v0.12.9) (2022-09-01)
 * fix `fromjson` to emit error on unexpected trailing string
 * fix path analyzer on variable argument evaluation (`def f($x): .y; path(f(.x))`)