Fixes for jdbcstore, jdbcconfig & jndi #373

Job	Run time
build-activemq-docker-image	25s
build-geoserver-docker-image (2, 9.0.91-jdk17-temurin-focal, /opt/java/openjdk, 26, 0, https://so...	5m 35s
run-scenario-tests (gwc)	2m 38s
run-scenario-tests (login)	2m 49s
run-scenario-tests (stores)	2m 36s
run-scenario-tests (context)	1m 47s
run-scenario-tests (disk-quota)	2m 39s
run-scenario-tests (jdbconfig)	2m 16s
run-scenario-tests (libjpeg)	1m 11s
scan_image	1m 2s
push-internal-pr-images	0s
	22m 58s

Provide feedback