Update GIR files

Author: bilelmoussaoui

Gdk-4.0.gir

@@ -16992,7 +16992,7 @@ what colorstates are, this is probably the right thing.</doc>
             <doc xml:space="preserve">a `GdkMemoryTextureBuilder`</doc>
             <type name="MemoryTextureBuilder" c:type="GdkMemoryTextureBuilder*"/>
           </instance-parameter>
-          <parameter name="color_state" transfer-ownership="none" nullable="1" allow-none="1">
+          <parameter name="color_state" transfer-ownership="none">
             <doc xml:space="preserve">The colorstate describing the data</doc>
             <type name="ColorState" c:type="GdkColorState*"/>
           </parameter>