[gspell] build: revert "require Enchant >= 2.2.12"

[Sébastien Wilmet <swilmet src gnome org>]

commit dd0b5b2aec5a8061105c6be7abf95019b5fef8fe
Author: Sébastien Wilmet <swilmet informatique-libre be>
Date:   Fri Apr 1 10:04:04 2022 +0200

    build: revert "require Enchant >= 2.2.12"
    
    This commit reverts this one:
    commit 65e93eb93cfa9301f8ab723a03e0274ef58ced2f
    
    SUSE (SLED) 15.3 has not a recent enough version of Enchant.
    And this is more an Enchant issue than a gspell one.

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index f55e82b..0bf32a7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -50,7 +50,7 @@ GSPELL_API_VERSION=1
 AC_SUBST(GSPELL_API_VERSION)
 
 # Dependencies
-enchant_req=2.2.12
+enchant_req=2.1.3
 glib_req=2.44
 gtk_req=3.20