Update the release tag of spgwu to v1.4.0

charts/oai-5g-core/oai-5g-basic/Chart.yaml

charts/oai-5g-core/oai-5g-basic/values.yaml

charts/oai-5g-core/oai-5g-mini/Chart.yaml

charts/oai-5g-core/oai-5g-mini/values.yaml

charts/oai-5g-core/oai-5g-slicing/Chart.yaml

charts/oai-5g-core/oai-5g-slicing/values.yaml

charts/oai-5g-core/oai-nrf/values.yaml

charts/oai-5g-core/oai-spgwu-tiny/Chart.yaml

charts/oai-5g-core/oai-spgwu-tiny/scripts/spgw_u.conf

charts/oai-5g-core/oai-spgwu-tiny/templates/deployment.yaml

charts/oai-5g-core/oai-spgwu-tiny/values.yaml

charts/oai-5g-core/oai-udm/values.yaml

charts/oai-5g-ran/oai-gnb-du/templates/deployment.yaml

charts/oai-5g-ran/oai-gnb-du/templates/multus.yaml

charts/oai-5g-ran/oai-gnb-du/values.yaml

docker-compose/docker-compose-basic-nonrf.yaml

docker-compose/docker-compose-basic-nrf-httpv2.yaml

docker-compose/docker-compose-basic-nrf.yaml

docker-compose/docker-compose-mini-nonrf.yaml

docker-compose/docker-compose-mini-nrf.yaml