Upgrade bazel-skylib to 1.5.0 am: a7ef9ffeaf am: 930baaa099 am: 4a69de5007

Original change: https://android-review.googlesource.com/c/platform/external/bazel-skylib/+/2839138

Change-Id: I8c430b83640d8a69ad5203f326b55e7c9e92e4e5
Signed-off-by: Automerger Merge Worker <[email protected]>