Build internal HTTP clients without loading TLS roots - #11482

control: job assigned to worker 01M4VTTF96BKHQZ1JD2R7XX12B [factory aws, i-0aaa2909b9c86e855] (queued for 58 s)
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task: starting task 0: "setup"
task: process exited: duration 4100 ms, exit code 0
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task: starting task 1: "rust-toolchain"
task: process exited: duration 16449 ms, exit code 0
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task: starting task 2: "authentication"
task: process exited: duration 18 ms, exit code 0
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task: starting task 3: "clone repository"
task: process exited: duration 18133 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 37909K
| a out/pumpkind-gz.tar 26647K
| a out/switch-softnpu.tar.gz 330980K
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| real     1:06.815419136
| user     1:04.664793142
| sys         3.555429843
| trap        0.005357558
| tflt        0.000000000
| dflt        0.000000000
| kflt        0.000000000
| lock        0.000000000
| slp      1:04.611475263
| lat         0.789898218
| stop        0.000175158
task: process exited: duration 1002817 ms, exit code 0
|W| found 1 output files
|W| uploading: /work/package.tar.gz (1881416940 bytes)
|W| uploaded: /work/package.tar.gz