fix(fair-queue): ensure concurrency is released when a message reaches visibility timeout to prevent concurrency leaks #4213

Job	Run time
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	3m 53s
typecheck / typecheck	6m 32s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	3m 19s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 45s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 44s
units / packages / 🧪 Unit Tests: Packages (1, 1)	8m 10s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	7m 9s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 1s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	6m 34s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 56s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	3m 7s
units / internal / 🧪 Unit Tests: Internal (2, 8)	9m 18s
units / internal / 🧪 Unit Tests: Internal (6, 8)	4m 41s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 35s
units / internal / 🧪 Unit Tests: Internal (4, 8)	5m 5s
units / internal / 🧪 Unit Tests: Internal (8, 8)	2m 55s
units / internal / 🧪 Unit Tests: Internal (1, 8)	5m 47s
units / internal / 🧪 Unit Tests: Internal (7, 8)	5m 8s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	3m 50s
units / internal / 🧪 Unit Tests: Internal (5, 8)	3m 54s
units / internal / 🧪 Unit Tests: Internal (3, 8)	5m 40s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	5m 37s
units / webapp / 📊 Merge Reports	46s
units / packages / 📊 Merge Reports	21s
units / internal / 📊 Merge Reports	19s
	1h 48m 6s

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