fix: cap distinct user-agents per endpoint in GrpcUsageTracker - #26778

12 files  ±0  12 suites  ±0   21m 39s ⏱️ +6s
12 tests ±0   9 ✅ ±0  3 💤 ±0  0 ❌ ±0 
18 runs  ±0  15 ✅ ±0  3 💤 ±0  0 ❌ ±0 

Results for commit eb695f6. ± Comparison against earlier commit b7a4df6.