Allow multiple depedency graphs for download-and-submit

[ChipWolf]

Currently download-and-submit will take the latest dependency graph from the artifacts.

In the case of monorepo matrices, where many dependency graph artifacts are generated, there is a need to download all of them and submit them together only if the entire matrix succeeds & a release is generated.

The code is already here to upload multiple dependency graphs, so it should just be a case of parameterising latest:

actions/sources/src/dependency-graph.ts

Lines 126 to 131 in 4ba34e9

	let dependencyGraphArtifacts = (
	await artifactClient.listArtifacts({
	latest: true,
	findBy
	})
	).artifacts.filter(artifact => artifact.name.startsWith(DEPENDENCY_GRAPH_PREFIX))

[bigdaz]

Thanks for the report @ChipWolf . Can you elaborate on the use case where you have multiple dependency graph files being generated with the same name in a single workflow execution?

Please describe the workflow structure and provide concrete examples of the file names involved?
Thanks!