build-unit-test-docker: update linux headers to 6.0

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I0d34e65bb5e7ce8bd6f40e18e572a75f266dd9b2
diff --git a/scripts/build-unit-test-docker b/scripts/build-unit-test-docker
index d0b48d3..664726c 100755
--- a/scripts/build-unit-test-docker
+++ b/scripts/build-unit-test-docker
@@ -143,9 +143,9 @@
         rev="v1.15",
         build_type="make",
     ),
-    # dev-5.15 2022-09-27
+    # dev-6.0 2022-11-28
     "openbmc/linux": PackageDef(
-        rev="c9fb275212dac5b300311f6f6b1dcc5ed18a3493",
+        rev="1b16243b004ce4d977a9f3b9d9e715cf5028f867",
         build_type="custom",
         build_steps=[
             f"make -j{proc_count} defconfig",