Correct EGL_EXT_config_select_group's type to be a display extension (#199)

Because EGL_EXT_config_select_group only affects the behavior of
eglChooseConfig (which takes and is dispatched based on an EGLDisplay),
it's a display extension, not a client extension.
diff --git a/extensions/EXT/EGL_EXT_config_select_group.txt b/extensions/EXT/EGL_EXT_config_select_group.txt
index 0da3dc5..c7d3ecd 100644
--- a/extensions/EXT/EGL_EXT_config_select_group.txt
+++ b/extensions/EXT/EGL_EXT_config_select_group.txt
@@ -30,7 +30,7 @@
 
 Extension Type
 
-    EGL client extension
+    EGL display extension
 
 Dependencies
 
@@ -98,6 +98,9 @@
 
 Revision History
 
+    Version 5, 2024-05-09 (Kyle Brenneman)
+        - Corrected extension type to display extension.
+
     Version 4, 2021-06-24 (Robert Mader)
         - Moved to EXT, changed enum value to 0x34C0.