fix(glib): Vala's vapi's name should be same as pkg-config package (a…

…pache#1298)

In sync with arrow-glib, GADBC should name its Vala's VAPI file's name
to adbc-glib and is the same as the pkg-config adbc-glib.pc file's name

https://wiki.gnome.org/Projects/Vala/LibraryWritingNamingAndBuilding


> The name of the VAPI file should be the same as the pkg-config file for the library.

glib/adbc-glib/meson.build

@@ -103,7 +103,7 @@ adbc_glib_gir = gnome.generate_gir(libadbc_glib,
  sources: sources + definition_headers + enums,
  symbol_prefix: 'gadbc')
 if generate_vapi
- adbc_glib_vapi = gnome.generate_vapi('gadbc-1.0',
+ adbc_glib_vapi = gnome.generate_vapi('adbc-glib',
  install: true,
  packages: ['gobject-2.0'],
  sources: [adbc_glib_gir[0]])