chore: release scheduler 0.8.3

[mowies]

:robot: I have created a release beep boop

0.8.3 (2023-09-05)

Other

• fix minor security issues (#1728) (ea73cd9)
• main: release lifecycle-operator-and-scheduler libraries (#1979) (12d0f40)

Docs

• implement KLT -> Keptn name change (#2001) (440c308)
• keptn Scheduler architecture documentation (#1777) (ce96200)

Dependency Updates

• update dependency kubernetes-sigs/kustomize to v5.1.1 (#1853) (354ab3f)
• update kubernetes packages (patch) (#1786) (cba2de5)
• update module github.com/onsi/ginkgo/v2 to v2.12.0 (#2019) (41e878f)
• update module github.com/onsi/gomega to v1.27.10 (#1796) (8f14bff)
• update module github.com/onsi/gomega to v1.27.9 (#1787) (90b6ce9)
• update module golang.org/x/net to v0.12.0 (#1662) (49318bf)
• update module golang.org/x/net to v0.14.0 (#1855) (3186188)
• update module google.golang.org/grpc to v1.56.2 (#1663) (0b618c4)
• update module google.golang.org/grpc to v1.57.0 (#1861) (fdcbdf5)
• update module k8s.io/kubernetes to v1.25.13 (#1958) (fb23f09)

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[mowies]

:robot: Release is at https://github.com/mowies/lifecycle-controller/releases/tag/scheduler-v0.8.3 :sunflower: