[jdk8u-dev] RFR: 8315757: [8u] Add cacerts JTREG tests to GHA tier1 test set

[Severin Gehwolf]

Simple GHA only change to add cacert tests to the tier1 test set. Please review.

Testing:
 - [x] GHA (which shows a failure in tier1 now, `VerifyCACerts.java` fails due to JDK-8295894; being worked on in jdk8u repo)

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Depends on: https://git.openjdk.org/jdk8u-dev/pull/365

Commit messages:
 - 8315757: [8u] Add cacerts JTREG tests to GHA tier1 test set
 - Backport 4c2e54fb055bee0af5cd838fdd32a0f7902d51e3
 - Backport 512db0ff31a0a1a2bd8805964ba3d06e2cbfb9e9

Changes: https://git.openjdk.org/jdk8u-dev/pull/368/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=368&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315757
  Stats: 513 lines in 2 files changed: 112 ins; 46 del; 355 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/368.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/368/head:pull/368

PR: https://git.openjdk.org/jdk8u-dev/pull/368