[gnome-builder] build: disable gvls by default

[Christian Hergert <chergert src gnome org>]

commit a542070b1a7c76f0ccd7d76989a40093690a9b52
Author: Christian Hergert <chergert redhat com>
Date:   Wed Mar 9 11:05:15 2022 -0800

    build: disable gvls by default
    
    I don't want this LSP which has not been updated to use IdeLspClient
    enabled by default in builds.

 meson_options.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson_options.txt b/meson_options.txt
index fb3c06110..370f248cf 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -52,7 +52,7 @@ option('plugin_gnome_code_assistance', type: 'boolean')
 option('plugin_go_langserv', type: 'boolean')
 option('plugin_gradle', type: 'boolean')
 option('plugin_grep', type: 'boolean')
-option('plugin_gvls', type: 'boolean')
+option('plugin_gvls', type: 'boolean', value: false))
 option('plugin_html_completion', type: 'boolean')
 option('plugin_html_preview', type: 'boolean')
 option('plugin_intelephense', type: 'boolean')