RFR: 8259338: Add expiry exception for identrustdstx3 alias to VerifyCACerts.java test

[Rajan Halade]

Test is updated to add expiry exception for "identrustdstx3 [jdk]" alias.

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Commit messages:
 - 8259338: Add expiry exception for identrustdstx3 alias to VerifyCACerts.java test

Changes: https://git.openjdk.java.net/jdk/pull/4500/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4500&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8259338
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4500.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4500/head:pull/4500

PR: https://git.openjdk.java.net/jdk/pull/4500