Update the JSON schemas

The command executed was as follows:
rm -f .api.deps .cli.deps && FETCH_APIS=1 make update-json -j8

etc/api/admin/directory_v1/admin-api.json

@@ -4671,7 +4671,7 @@
             }
         }
     },
-    "revision": "20240227",
+    "revision": "20240409",
     "rootUrl": "https://admin.googleapis.com/",
     "schemas": {
         "Alias": {
@@ -4810,6 +4810,30 @@
             },
             "type": "object"
         },
+        "BacklightInfo": {
+            "description": "Information about the device's backlights.",
+            "id": "BacklightInfo",
+            "properties": {
+                "brightness": {
+                    "description": "Output only. Current brightness of the backlight, between 0 and max_brightness.",
+                    "format": "int32",
+                    "readOnly": true,
+                    "type": "integer"
+                },
+                "maxBrightness": {
+                    "description": "Output only. Maximum brightness for the backlight.",
+                    "format": "int32",
+                    "readOnly": true,
+                    "type": "integer"
+                },
+                "path": {
+                    "description": "Output only. Path to this backlight on the system. Useful if the caller needs to correlate with other information.",
+                    "readOnly": true,
+                    "type": "string"
+                }
+            },
+            "type": "object"
+        },
         "BatchChangeChromeOsDeviceStatusRequest": {
             "description": "A request for changing the status of a batch of ChromeOS devices.",
             "id": "BatchChangeChromeOsDeviceStatusRequest",
@@ -5383,6 +5407,14 @@
                     "format": "int64",
                     "type": "string"
                 },
+                "backlightInfo": {
+                    "description": "Output only. Contains backlight information for the device.",
+                    "items": {
+                        "$ref": "BacklightInfo"
+                    },
+                    "readOnly": true,
+                    "type": "array"
+                },
                 "bootMode": {
                     "description": "The boot mode for the device. The possible values are: * `Verified`: The device is running a valid version of the Chrome OS. * `Dev`: The devices's developer hardware switch is enabled. When booted, the device has a command line shell. For an example of a developer switch, see the [Chromebook developer information](https://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/samsung-series-5-chromebook#TOC-Developer-switch).",
                     "type": "string"