Chessa::Bug::Adelie: fix merge state regex

scripts/Chessa/Bug/Adelie.pm

@@ -179,7 +179,7 @@ sub mr {
         labels  => [],
         merge  => $json->{merge_status},
     );
-    $d{merge} =~ s/_/ /;
+    $d{merge} =~ s/_/ /g;
     if (exists($json->{labels})) {
         for my $label (@{$json->{labels}}) {
             push @{$d{labels}}, $label->{title};