feat: add contract definition empty asset selector validator #3615

Job	Run time
verify / api-tests	1m 52s
deployment-test / test-prepare	4s
upgradeability-test / test-prepare	4s
verify / end-to-end-tests (edc-tests/edc-controlplane/catalog-tests)	2m 35s
verify / integration-tests	2m 38s
verify / end-to-end-tests (edc-tests/edc-controlplane/edr-api-tests)	2m 33s
verify / postgres-tests	3m 7s
verify / unit-tests	2m 25s
verify / end-to-end-tests (edc-tests/edc-controlplane/iatp-tests)	3m 9s
verify / end-to-end-tests (edc-tests/edc-controlplane/policy-tests)	2m 20s
verify / verify-formatting	1m 22s
verify / end-to-end-tests (edc-tests/edc-controlplane/transfer-tests)	3m 8s
verify / verify-helm-docs	5s
verify / verify-javadoc	1m 27s
verify / end-to-end-tests (edc-tests/edc-controlplane/agreement-retirement-tests)	1m 41s
verify / end-to-end-tests (edc-tests/edc-dataplane/edc-dataplane-tokenrefresh-tests)	1m 14s
verify / end-to-end-tests (edc-tests/edc-dataplane/cloud-transfer-tests)	3m 8s
verify / end-to-end-tests (edc-tests/edc-end2end)	2m 38s
deployment-test / test-hashicorp-postgres (v1.31.0)	2m 55s
deployment-test / test-hashicorp-postgres (v1.30.4)	2m 56s
deployment-test / test-in-memory	2m 59s
deployment-test / test-hashicorp-postgres (v1.29.8)	3m 1s
upgradeability-test / test-upgradeability	2m 58s
summary	1s
	50m 20s

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