Tighten file permissions #9439

Job	Run time
Build	1m 45s
Lint	1m 54s
Run integration tests (test-e2e)	1m 56s
Run integration tests (test-integration-poller)	1m 56s
Run Unit Tests (test-with-cover-pkg)	1m 55s
Run integration tests (test-e2e-deployments)	1m 56s
Benchmark	1m 58s
Run Unit Tests (test-with-cover-tempodb)	1m 56s
Run integration tests (test-e2e-serverless)	1m 55s
Run Unit Tests (test-with-cover-tempodb-wal)	1m 54s
Build technical documentation	19s
Run Unit Tests (test-with-cover-others)	1m 56s
Check jsonnet & tempo-mixin	56s
Vendor check	1m 40s
	23m 56s

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