[jdk21u-dev] RFR: 8321543: Update NSS to version 3.96

[Goetz Lindenmaier]

I backport this for parity with 21.0.6-oracle.

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Commit messages:
 - Backport 6cda4c59851d7a9bbe8bd39c93a8923b039a7184

Changes: https://git.openjdk.org/jdk21u-dev/pull/1047/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1047&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8321543
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1047.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1047/head:pull/1047

PR: https://git.openjdk.org/jdk21u-dev/pull/1047