Fix JSDoc multiline type cast alignment in assignment (#19180)

changelog_unreleased/javascript/19180.md

@@ -0,0 +1,20 @@
+#### Fix multiline JSDoc-style comment alignment in assignments (#19180 by @kovsu)
+
+<!-- prettier-ignore -->
+```jsx
+// Input
+const foo = /**
+ * comment
+ */ bar;
+
+// Prettier stable
+const foo = /**
+ * comment
+ */ bar;
+
+// Prettier main
+const foo =
+  /**
+   * comment
+   */ bar;
+```