not running CI as it'll be running tonight

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use upstream pegasus repository

See merge request !43

no longer maintaining the IGWN mirror of this repository

https://git.ligo.org/computing/sccb/-/issues/1596#note_1076452

Update OSG repo to 23-main [el8]

Closes #21

See merge request !27

gitlab-ci doesn't support variables in patrigger parallel matrix arrays

Use new CI/CD components [el8]

Closes #12

See merge request !26

closes #12

Use new docker/cicd templates

Closes #6

See merge request docker/base!20

closes #6

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(cherry picked from commit 6dabe9eb)