[infra] Update node to 12.16.1

Change-Id: I55e14b137d985fafd4e2c8fbc2cd76b27217699e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/275217
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Eric Boren <borenet@google.com>
3 files changed