update nightly job to Composite and chain sweepers

[jackofallops]

Updates the nightly build job to a Composite Job, and chain sweepers to improve reliability and allow build optimisation.

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[google-cla]

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[github-actions]

Googlers: For automatic test runs see go/terraform-auto-test-runs.

@c2thorn, a repository maintainer, has been assigned to review your changes. If you have not received review feedback within 2 business days, please leave a comment on this PR asking them to take a look.

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[c2thorn]

[ERROR] Error while generating TeamCity configs:
[ERROR] Compilation error components/projects/global_sweepers_project.kt[46:9]: Unresolved reference: finishBuildTrigger
[ERROR] Compilation error components/projects/global_sweepers_project.kt[47:13]: Unresolved reference: buildType
[ERROR] Compilation error components/projects/global_sweepers_project.kt[48:13]: Unresolved reference: successfulOnly
[ERROR] Compilation error components/projects/global_sweepers_project.kt[65:9]: Unresolved reference: finishBuildTrigger
[ERROR] Compilation error components/projects/global_sweepers_project.kt[66:13]: Unresolved reference: buildType
[ERROR] Compilation error components/projects/global_sweepers_project.kt[67:13]: Unresolved reference: successfulOnly

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes for commit f543c60:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	2 files changed, 63 insertions(+), 8 deletions(-)

[BBBmau]

following up from @c2thorn i applied the changes to validate the build chain, they can be found here

Here's the output that i get when running it with 3 services

How it appears for Service Sweeper with the dependencies set

How it appears for All Nightly Tests