[CI][7.x][FIPS] SSLConfigurationReloaderTests failures

[tvernum]

Reproduces, has been failing since 22-Nov, so is probably caused by #49280

./gradlew ':x-pack:plugin:core:test' --tests "org.elasticsearch.xpack.core.ssl.SSLConfigurationReloaderTests.testTrustStoreReloadException" \
  -Dtests.seed=E9973354B47358FD \
  -Dtests.security.manager=true \
  -Dtests.locale=ar-LB \
  -Dtests.timezone=Atlantic/Cape_Verde \
  -Dcompiler.java=12 \
  -Druntime.java=8FIPS \
  -Djavax.net.ssl.keyStorePassword=password \
  -Djavax.net.ssl.trustStorePassword=password

https://gradle-enterprise.elastic.co/s/g6p7shai7zwiq/

[elasticmachine]

Pinging @elastic/es-security (:Security/Network)