git: openjdk/jdk17u-dev: 8298108: Add a regression test for JDK-8297684

[Severin Gehwolf]

Changeset: 8a8cdeb7
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-01-09 10:46:02 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/8a8cdeb72d74e8de92d1f9f203be4a8138d690c8

8298108: Add a regression test for JDK-8297684

Backport-of: 4da8411674b7515310000bd8243860bc73f9a03d

+ test/jdk/java/security/SignedJar/spi-calendar-provider/TestSPISigned.java
+ test/jdk/java/security/SignedJar/spi-calendar-provider/provider/baz/CalendarDataProviderImpl.java
+ test/jdk/java/security/SignedJar/spi-calendar-provider/provider/meta/META-INF/services/java.util.spi.CalendarDataProvider