build(deps): bump sigstore/cosign-installer from 3.5.0 to 3.6.0 (#3919) #14885

Job	Run time
Lint	3m 10s
Lint Rust Default Features	1m 20s
Test (macos-latest)	2m 24s
Test All Features (ubuntu-latest)	3m 47s
Test (windows-latest)	7m 34s
Test Python	2m 22s
Setup build metadata	1s
Integration Tests	13m 35s
Build Relay Binary (relay, x86_64-unknown-linux-gnu)	7m 51s
Build Relay Binary (relay, aarch64-unknown-linux-gnu)	8m 9s
Build Relay Binary (relay-pop, x86_64-unknown-linux-gnu)	7m 2s
Build Relay Binary (relay-pop, aarch64-unknown-linux-gnu)	7m 38s
Build Docker Image (relay)	1m 35s
Build Docker Image (relay-pop)	1m 41s
Sentry-Relay Integration Tests	11m 3s
Publish Relay to DockerHub (relay)	29s
Publish Relay to GCR (relay)	41s
Upload build artifacts to gocd (relay)	37s
self-hosted-end-to-end	13m 52s
Publish Relay to GCR (relay-pop)	34s
Upload build artifacts to gocd (relay-pop)	37s
	1h 36m 2s

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