Bump anchore/scan-action from 3.6.4 to 4.0.0 #6644

Job	Run time
Checks and variables	1m 43s
Unit Tests	1m 26s
NJS Unit Tests	1m 20s
Build Binary	15s
Build Plus images / build	1m 3s
Build OSS images (nginx, linux/arm64, linux/amd64) / build	1m 8s
Build OSS images (ngf, linux/arm64, linux/amd64) / build	1m 5s
Helm Tests	0s
Functional tests (nginx, v1.30.2) / Run Tests	10m 16s
Functional tests (nginx, v1.25.16) / Run Tests	9m 44s
Functional tests (plus, v1.25.16) / Run Tests	9m 36s
Functional tests (plus, v1.30.2) / Run Tests	9m 37s
Package and Publish Helm Chart	0s
Conformance tests (nginx, v1.25.16, false) / Run Tests	5m 34s
Conformance tests (nginx, v1.25.16, true) / Run Tests	5m 11s
Conformance tests (nginx, v1.30.2, false) / Run Tests	5m 14s
Conformance tests (nginx, v1.30.2, true) / Run Tests	6m 58s
Conformance tests (plus, v1.25.16, false) / Run Tests	5m 39s
Conformance tests (plus, v1.25.16, true) / Run Tests	6m 39s
Conformance tests (plus, v1.30.2, false) / Run Tests	5m 13s
Conformance tests (plus, v1.30.2, true) / Run Tests	6m 9s
	1h 33m 50s

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