[jdk18u] RFR: 8277488: Add expiry exception for Digicert (geotrustglobalca) expiring in May 2022

[Rajan Halade]

clean backport

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Commit messages:
 - Backport d3749de47832c6de4bcee9cf64a0b698e796b2f2

Changes: https://git.openjdk.java.net/jdk18u/pull/30/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18u&pr=30&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8277488
  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk18u/pull/30.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18u pull/30/head:pull/30

PR: https://git.openjdk.java.net/jdk18u/pull/30