tempo-cli: support dropping multiple traces in a single operation #9483

Job	Run time
Run integration tests (test-e2e)	20m 26s
Benchmark	9m 38s
Build	1m 46s
Run integration tests (test-integration-poller)	9m 57s
Run integration tests (test-e2e-deployments)	13m 20s
Lint	3m 15s
Run Unit Tests (test-with-cover-pkg)	3m 17s
Run integration tests (test-e2e-serverless)	7m 10s
Run Unit Tests (test-with-cover-tempodb)	15m 39s
Build technical documentation	24s
Check jsonnet & tempo-mixin	57s
Run Unit Tests (test-with-cover-tempodb-wal)	11m 21s
Run Unit Tests (test-with-cover-others)	12m 36s
Vendor check	1m 24s
	1h 51m 10s

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