Update to glib 0.14

An intimidating spam of compiler errors at the start, but the
biggest was handling the new convention of `ostree_sys::` => `ffi::`.

This will require a semver bump of course.

rust-bindings/rust/conf/ostree-sys.toml

@@ -36,4 +36,4 @@ ignore = [
     "OSTree.BUILT_FEATURES",
 ]
 
-girs_dir = "../gir-files"
+girs_directories = [ "../gir-files" ]

rust-bindings/rust/conf/ostree.toml

@@ -13,7 +13,7 @@ deprecate_by_min_version = true
 single_version_file = true
 generate_display_trait = true
 
-girs_dir = "../gir-files"
+girs_directories = [ "../gir-files" ]
 
 generate = [
     "OSTree.AsyncProgress",
@@ -225,6 +225,11 @@ status = "generate"
     name = "opts"
     const = true
 
+    [[object.function]]
+    # [IGNORE] overlaps with repo()
+    name = "get_repo"
+    ignore = true
+
 [[object]]
 name = "OSTree.*"
 status = "generate"