EOFError from pool_cleanup when closing REPL

[Octogonapus]

Describe the bug

When terminating a REPL session using ^D, the sleep(60) inside pool_cleanup is interrupted. This exception is uncaught, so an uncaught task exception is logged just before the REPL exits:

Unhandled Task ERROR: EOFError: read end of file
Stacktrace:
 [1] wait
   @ ./asyncevent.jl:136 [inlined]
 [2] sleep(sec::Int64)
   @ Base ./asyncevent.jl:221
 [3] pool_cleanup()
   @ CUDA ~/.julia/packages/CUDA/Uurn4/src/pool.jl:129
 [4] (::CUDA.var"#197#199")()
   @ CUDA ./threadingconstructs.jl:178

To reproduce

Exit a REPL session while the pool_cleanup() task is sleeping.

Expected behavior

I expect this function to exit gracefully when the REPL is closed. The patch for this is probably just:

try
  sleep(60)
catch
  break
end

Version info

Details on Julia:

Julia Version 1.7.2
Commit bf53498635 (2022-02-06 15:21 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-12.0.1 (ORCJIT, skylake)
Environment:
  JULIA_PKG_SERVER = 
  JULIA_EDITOR = code --wait

Details on CUDA:

CUDA toolkit 11.6, artifact installation
NVIDIA driver 510.60.2, for CUDA 11.6
CUDA driver 11.6

Libraries: 
- CUBLAS: 11.8.1
- CURAND: 10.2.9
- CUFFT: 10.7.0
- CUSOLVER: 11.3.2
- CUSPARSE: 11.7.1
- CUPTI: 16.0.0
- NVML: 11.0.0+510.60.2
- CUDNN: 8.30.2 (for CUDA 11.5.0)
- CUTENSOR: 1.4.0 (for CUDA 11.5.0)

Toolchain:
- Julia: 1.7.2
- LLVM: 12.0.1
- PTX ISA support: 3.2, 4.0, 4.1, 4.2, 4.3, 5.0, 6.0, 6.1, 6.3, 6.4, 6.5, 7.0
- Device capability support: sm_35, sm_37, sm_50, sm_52, sm_53, sm_60, sm_61, sm_62, sm_70, sm_72, sm_75, sm_80

1 device:
  0: NVIDIA GeForce RTX 3080 Ti (sm_86, 10.563 GiB / 12.000 GiB available)

Additional context

Add any other context about the problem here.