build: Update brotli, zstd, flate2 #15241

Job	Run time
Lint	3m 49s
Test All Features (ubuntu-latest)	4m 45s
Lint Rust Default Features	2m 28s
Setup build metadata	1s
Test (macos-latest)	2m 53s
Test Python	1m 3s
Integration Tests	12m 35s
Test (windows-latest)	7m 58s
Build Relay Binary (relay, x86_64-unknown-linux-gnu)	9m 29s
Build Docker Image (relay)	46s
Sentry-Relay Integration Tests	12m 52s
Publish Relay to DockerHub	0s
self-hosted-end-to-end	13m 50s
Publish Relay to GCR	0s
Upload build artifacts to gocd	0s
	1h 12m 29s

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