fix(quota): Count span only once when quota is defined for two categories #16369

Job	Run time
Test (macos-latest)	2m 6s
Lint	3m 2s
Test (windows-latest)	6m 19s
Setup build metadata	1s
Lint Rust Default Features	2m 59s
Test All Features (ubuntu-latest)	3m 41s
Test Python	1m 1s
Integration Tests	8m 12s
Build Relay Binary (relay, x86_64-unknown-linux-gnu)	7m 25s
Build Docker Image (relay)	27s
Publish Relay to DockerHub	0s
Upload build artifacts to gocd	0s
self-hosted-end-to-end	14m 27s
Publish Relay to GCR	0s
Sentry-Relay Integration Tests	12m 50s
	1h 2m 30s

Provide feedback