[jdk21u-dev] RFR: 8347299: Add annotations to test cases in LicenseTest

[Satyen Subramaniam]

Backporting JDK-8347299: Add annotations to test cases in LicenseTest. Adding missing `jdk.jpackage.test.Annotations.Test` annotations to test cases in LicenseTest test and update jtreg command line accordingly. Ran GHA Sanity Checks, local Tier 1 and 2, and adjusted test directly. Patch is clean.

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Commit messages:
 - Backport 97dd06ce0a5a2bbc28c3c97b201eca81196af698

Changes: https://git.openjdk.org/jdk21u-dev/pull/1872/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1872&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8347299
  Stats: 19 lines in 1 file changed: 11 ins; 6 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1872.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1872/head:pull/1872

PR: https://git.openjdk.org/jdk21u-dev/pull/1872