Replace `unsafe` interning with `unique` package #9478

Job	Run time
Build	1m 47s
Build	1m 47s
Lint	3m 25s
Lint	3m 25s
Run integration tests (test-e2e)	21m 0s
Run integration tests (test-e2e)	21m 0s
Run integration tests (test-integration-poller)	9m 55s
Run integration tests (test-integration-poller)	9m 55s
Run integration tests (test-e2e-deployments)	13m 32s
Run integration tests (test-e2e-deployments)	13m 32s
Run Unit Tests (test-with-cover-pkg)	3m 13s
Run Unit Tests (test-with-cover-pkg)	3m 13s
Run integration tests (test-e2e-serverless)	7m 23s
Run integration tests (test-e2e-serverless)	7m 23s
Run Unit Tests (test-with-cover-tempodb)	15m 51s
Run Unit Tests (test-with-cover-tempodb)	16m 6s
Benchmark	9m 41s
Benchmark	9m 41s
Run Unit Tests (test-with-cover-tempodb-wal)	11m 23s
Run Unit Tests (test-with-cover-tempodb-wal)	11m 23s
Build technical documentation	19s
Build technical documentation	19s
Run Unit Tests (test-with-cover-others)	12m 26s
Run Unit Tests (test-with-cover-others)	12m 26s
Check jsonnet & tempo-mixin	49s
Check jsonnet & tempo-mixin	49s
Vendor check	1m 28s
Vendor check	1m 28s
	3h 44m 39s

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