Prepare for 12.0.2 release (#8116)

Author: cknitt

CHANGELOG.md

@@ -10,11 +10,7 @@
 > - :nail_care: [Polish]
 > - :house: [Internal]
 
-# 12.0.2 (Unreleased)
-
-#### :boom: Breaking Change
-
-#### :eyeglasses: Spec Compliance
+# 12.0.2
 
 #### :rocket: New Feature
 
@@ -28,14 +24,10 @@
 - Fix `@scope` shadowing (rewrite using `globalThis`). https://github.com/rescript-lang/rescript/pull/8100
 - Formatter: normalize underscore placeholders in pipe expressions to canonical form (e.g., `a->map2(_, fn)` formats to `a->map2(fn)`). https://github.com/rescript-lang/rescript/pull/8033
 - Fix rewatch panic on duplicate module name. https://github.com/rescript-lang/rescript/pull/8102
-- Fix `let?` unwrap to use actual variable names from pattern instead of hardcoded "x"/"e". When using `let? Some(myVar) = ...`, the variable name `myVar` is now properly propagated in early returns. https://github.com/rescript-lang/rescript/issues/8085
-- Fix 'Ill-formed list of warnings' errors for ppx's with rescript-legacy. https://github.com/rescript-lang/rescript/pull/8103
+- Fix `let?` unwrap to use actual variable names from pattern instead of hardcoded "x"/"e". https://github.com/rescript-lang/rescript/issues/8085
+- Fix "Ill-formed list of warnings" errors for PPXs with rescript-legacy. https://github.com/rescript-lang/rescript/pull/8103
 - Fix gentype generating invalid syntax for exotic / escaped record field names and type names. https://github.com/rescript-lang/rescript/pull/8087
 
-#### :memo: Documentation
-
-#### :nail_care: Polish
-
 #### :house: Internal
 
 - Reanalyze: refactor DCE to pure pipeline architecture for order-independence and incremental update support. https://github.com/rescript-lang/rescript/pull/8043