[clang] [clang-format] Add options to set number of empty lines after includes (PR #78957)

[via cfe-commits]

================
@@ -3220,6 +3220,25 @@ the configuration (without a prefix: ``Auto``).
 
 
 
+.. _EmptyLinesAfterIncludes:
+
+**EmptyLinesAfterIncludes** (``Unsigned``) :versionbadge:`clang-format 18` :ref:`¶ <EmptyLinesAfterIncludes>`
----------------
mydeveloperday wrote:

18 will be correct today, but it won't be tomorrow (as they branch I think), I doubt we are going to land this in 18

https://github.com/llvm/llvm-project/pull/78957