[libadwaita/wip/exalm/bump] meson: Bump the libtool version too

[Alexander Mikhaylenko <alexm src gnome org>]

commit e2e8dafd1500d5aac91c04c024aa054e6b192638
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sat Apr 23 00:43:27 2022 +0400

    meson: Bump the libtool version too
    
    Oops.

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index d4daba07..ae0de69c 100644
--- a/meson.build
+++ b/meson.build
@@ -29,7 +29,7 @@ package_api_name = '@0@-@1@'.format(meson.project_name(), apiversion)
 # to 0. When bumping the second version, set the third one to zero.
 #
 # A lot easier than libtool, right?
-libversion = '0.1.2'
+libversion = '0.2.0'
 # The so major version of the library
 soversion = 0