gnome/genmarshal: Add missing kwargs to permittedKwargs

There are thee arguments that are passed directly to CustomTarget which
are not in the permittedKwargs: depends, depend_files, and build_always.
The first two are obviously generically useful, as they allow creating
correct ordering. The latter, not so much. Since it was an error to pass
it, we'll just delete it.

docs/markdown/Gnome-module.md

@@ -120,18 +120,22 @@ typelib_target]`
 Generates a marshal file using the `glib-genmarshal` tool. The first
 argument is the basename of the output files.
 
-* `extra_args`: (*Added 0.42.0*) additional command line arguments to
-  pass
+* `depends` [](BuildTarget | CustomTarget | CustomTargetIndex):
+  passed directly to CustomTarget (*since 0.61.0*)
+* `depend_files` [](str | File): Passed directly to CustomTarget (*since 0.61.0*)
+* `extra_args`: (*Added 0.42.0*) additional command line arguments to pass
+* `install_dir`: directory to install header to
 * `install_header`: if true, install the generated header
 * `install_dir`: directory to install header to
-* `nostdinc`: if true, don't include the standard marshallers from
-  glib
-* `internal`: if true, mark generated sources as internal to
-  `glib-genmarshal` (*Requires GLib 2.54*)
+* `install_header`: if true, install the generated header
+* `internal`: if true, mark generated sources as internal to `glib-genmarshal`
+  (*Requires GLib 2.54*)
+* `nostdinc`: if true, don't include the standard marshallers from glib
 * `prefix`: the prefix to use for symbols
 * `skip_source`: if true, skip source location comments
-* `stdinc`: if true, include the standard marshallers from glib
+* `sources` []str *required*: List of string sources to consume
 * `sources`: the list of sources to use as inputs
+* `stdinc`: if true, include the standard marshallers from glib
 * `valist_marshallers`: if true, generate va_list marshallers
 
 *Added 0.35.0*
@@ -158,6 +162,7 @@ template with only minor tweaks, in which case the
 Note that if you `#include` the generated header in any of the sources
 for a build target, you must add the generated header to the build
 target's list of sources to codify the dependency. This is true for
+
 all generated sources, not just `mkenums`.
 
 * `c_template`: template to use for generating the source

mesonbuild/modules/gnome.py

@@ -1692,7 +1692,7 @@ class GnomeModule(ExtensionModule):
 
     @permittedKwargs({'sources', 'prefix', 'install_header', 'install_dir', 'stdinc',
                       'nostdinc', 'internal', 'skip_source', 'valist_marshallers',
-                      'extra_args'})
+                      'extra_args', 'depends', 'depend_files'})
     @typed_pos_args('gnome.genmarshal', str)
     def genmarshal(self, state: 'ModuleState', args: T.Tuple[str], kwargs) -> ModuleReturnValue:
         output = args[0]