v3dv/device: update conformanceVersion

The Vulkan CTS started generating the list of valid versions the
driver can report as conformant against based on the active branches,
and the branch we were reporting up to now is no longer valid.

Fixes dEQP-VK.api.driver_properties.conformance_version

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23980>

src/broadcom/vulkan/v3dv_device.c

@@ -1576,8 +1576,8 @@ v3dv_GetPhysicalDeviceProperties2(VkPhysicalDevice physicalDevice,
       .driverID = VK_DRIVER_ID_MESA_V3DV,
       .conformanceVersion = {
          .major = 1,
-         .minor = 2,
-         .subminor = 7,
+         .minor = 3,
+         .subminor = 6,
          .patch = 1,
       },
       .supportedDepthResolveModes = VK_RESOLVE_MODE_SAMPLE_ZERO_BIT,