fix(sql-playground): fix Online-Marktplatzsystem template (#1715) #1263

Job	Run time
Gradle Wrapper Validation	5s
API Docs Validation	8s
fbs-core.api / DB Migration Validation	3s
fbs-eat / Lint	25s
fbs-eat / Test	23s
fbs-sql-checker / Lint	25s
fbs-sql-checker / Test	25s
Build Docker images	0s
fbs-runner.checker / Lint	2m 35s
fbs-core.api / Lint	44s
fbs-runner.checker / Test	2m 44s
fbs-core.api / Test	2m 13s
fbs-core.web / Lint	1m 9s
fbs-core.web / Test	2m 29s
	13m 48s

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