add content type header when not MSAL (#649) #647

Job	Run time
build-and-test (17)	1m 17s
integration-tests (17, h2)	52s
build-and-test (21)	1m 24s
integration-tests (17, mariadb)	49s
build-and-test-nflow-explorer	3m 1s
build-and-test (22)	1m 15s
javadoc-spotbugs-codeql	4m 42s
integration-tests (17, postgresql)	44s
integration-tests (17, mysql)	51s
integration-tests (17, sqlserver)	51s
integration-tests (17, db2)	51s
integration-tests (17, oracle)	49s
integration-tests (21, h2)	49s
integration-tests (21, mariadb)	43s
integration-tests (21, postgresql)	51s
integration-tests (21, mysql)	49s
integration-tests (21, sqlserver)	30s
integration-tests (21, db2)	50s
integration-tests (21, oracle)	46s
	22m 44s

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