[ci] release (#332)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

.changeset/small-tips-jog.md

@@ -1,5 +1,13 @@
 # @astrojs/compiler
 
+## 0.12.1
+
+### Patch Changes
+
+- 097ac47: Parser: Always output the `attribute` property in an element node, even if empty
+- ad62437: Add `serialize` util
+- eb7eb95: Parse: fix escaping of `&` characters in AST output
+
 ## 0.12.0
 
 ### Minor Changes

.changeset/stupid-glasses-sleep.md

@@ -5,7 +5,7 @@
   "type": "module",
   "bugs": "https://github.com/withastro/compiler/issues",
   "homepage": "https://astro.build",
-  "version": "0.12.0",
+  "version": "0.12.1",
   "scripts": {
     "build": "tsc -p ."
   },