vim-patch:9.2.0920: filetype: json-ld files are not recognized

Problem:  filetype: json-ld files are not recognized
Solution: Detect *.jsonld files as jsonld filetype, include
          filetype, indent and syntax plugins (Bogdan Barbu).

Reference:
https://www.w3.org/TR/json-ld11/

closes: vim/vim#20954

https://github.com/vim/vim/commit/a1e2198a2ca8bbddcad69ade8629f371bcb4cf1f

Co-authored-by: Bogdan Barbu <l4b.bogdan.barbu@gmail.com>

runtime/ftplugin/jsonld.vim

@@ -0,0 +1,10 @@
+" Vim filetype plugin
+" Language:	JSON-LD
+" Maintainer:	The Vim Project <https://github.com/vim/vim>
+" Last Change:	2026 Aug 06
+
+if exists('b:did_ftplugin')
+  finish
+endif
+
+runtime! ftplugin/json.vim