Upgrade dev-libs/nspr package to 3.42.

BUG=b/211098383
TEST=presubmit
RELEASE_NOTE=Upgrade dev-libs/nspr to 3.42

cos-patch: security-high
Change-Id: I7293ae2f0e957e3a932ca9d6a8cd3556b18bcfb6
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/portage-stable/+/26820
Main-Branch-Verified: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
4 files changed