Bump org.testcontainers:testcontainers from 1.20.4 to 1.20.5 in /serv… #973

Job	Run time
Checkstyle	1m 17s
Spotbugs	1m 11s
Unit Tests	2m 42s
Integration Tests	9m 34s
End-to-End Testing	3m 47s
Build & Publish Docker Images (service, gp2gp, .)	1m 18s
Build & Publish Docker Images (wiremock, gp2gp-wiremock, .)	46s
Build & Publish Docker Images (mock-mhs-adaptor, gp2gp-mock-mhs, .)	1m 8s
Build & Publish Docker Images (gpcc-mock, gp2gp-gpcc-mock, ./docker/gpcc-mock)	27s
Build & Publish Docker Images (gpc-api-mock, gp2gp-gpc-api-mock, ./docker/gpc-api-mock)	23s
Build & Publish Docker Images (sds-api-mock, gp2gp-sds-api-mock, ./docker/sds-api-mock)	20s
	22m 53s

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