patch 9.1.0532: filetype: Cedar files not recognized

Problem:  filetype: Cedar files not recognized
Solution: Detect '*.cedar' files as cedar filetype
          (Riley Bruins)

References: https://github.com/cedar-policy

closes: #15148

Signed-off-by: Riley Bruins <ribru17@hotmail.com>
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/.github/MAINTAINERS b/.github/MAINTAINERS
index d36c6e7..2b4c475 100644
--- a/.github/MAINTAINERS
+++ b/.github/MAINTAINERS
@@ -113,6 +113,7 @@
 runtime/ftplugin/awk.vim		@dkearns
 runtime/ftplugin/basic.vim		@dkearns
 runtime/ftplugin/bst.vim		@tpope
+runtime/ftplugin/cedar.vim		@ribru17
 runtime/ftplugin/cfg.vim		@chrisbra
 runtime/ftplugin/chatito.vim		@ObserverOfTime
 runtime/ftplugin/chicken.vim		@evhan