fix(yaml): do not insert line break before an empty map or sequence (#17513)

Co-authored-by: fisker <lionkay@gmail.com>

changelog_unreleased/yaml/16074.md

@@ -0,0 +1,27 @@
+#### Do not add line break before empty map or sequence (#16074 by @BapRx)
+
+<!-- prettier-ignore -->
+```yaml
+# Input
+---
+myDict: {}
+  # comment
+myList: []
+  # comment
+
+# Prettier stable
+---
+myDict:
+  {}
+  # comment
+myList:
+  []
+  # comment
+
+# Prettier main
+---
+myDict: {}
+  # comment
+myList: []
+  # comment
+```