sled-agent: Move DiskManagementError to config-reconcilers (PR 1/2) - #10897

control: job assigned to worker 01KY5QPG5PP5XSCNVFRGYT9FCN [factory aws, i-0545ca41ad3ba04b0] (queued for 53 s)
...
task: starting task 0: "setup"
task: process exited: duration 4102 ms, exit code 0
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task: starting task 1: "rust-toolchain"
task: process exited: duration 17034 ms, exit code 0
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task: starting task 2: "authentication"
task: process exited: duration 20 ms, exit code 0
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task: starting task 3: "clone repository"
task: process exited: duration 16178 ms, exit code 0
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task: starting task 4: "build"
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| a out/probe.tar.gz 3037K
| a out/propolis-server.tar.gz 34372K
| a out/pumpkind-gz.tar 26647K
| a out/switch-softnpu.tar.gz 450104K
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| real     1:19.734640488
| user     1:17.106217877
| sys         4.399005976
| trap        0.006935645
| tflt        0.000000000
| dflt        0.000000000
| kflt        0.000000000
| lock        0.000000000
| slp      1:16.973861667
| lat         0.978397837
| stop        0.000460550
task: process exited: duration 940730 ms, exit code 0
|W| found 1 output files
|W| uploading: /work/package.tar.gz (2482938511 bytes)
|W| uploaded: /work/package.tar.gz