Update libsodium to 1.0.22. They may have fixed that arm64 compile issue ;)

We previously upgraded to 1.0.21 and then downgraded to 1.0.20.

Benefit of 1.0.22 is that they also claim to have fixed a warning flood
i am getting with clang 22.

configure

@@ -8988,7 +8988,7 @@ fi
 if test "$has_system_sodium" = "no"
 then :
 
-sodium_version="1.0.20"
+sodium_version="1.0.22"
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: extracting sodium library" >&5
 printf "%s\n" "extracting sodium library" >&6; }
 cur_dir=`pwd`

configure.ac

@@ -746,7 +746,7 @@ AS_IF([test "x$PRIVATELIBDIR" != "x"], [rm -f "$PRIVATELIBDIR/"libsodium*])],[ha
 
 AS_IF([test "$has_system_sodium" = "no"],[
 dnl REMEMBER TO CHANGE WITH A NEW SODIUM RELEASE!
-sodium_version="1.0.20"
+sodium_version="1.0.22"
 AC_MSG_RESULT(extracting sodium library)
 cur_dir=`pwd`
 cd extras