Merge "Address linter error in TestableNetworkCallbackTest" am: 25b0aeb2a2 am: 3fd3a926dc

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/1759009

Change-Id: Ia18b3a2e45475c96598752cb2c1bee2f33e3243a