build

Update reqwest requirement from 0.11 to 0.12 (#27) #238

Job	Run time
Clippy	39s
Test	2m 50s
Build with rust 1.69.0 on Linux	1m 10s
Build with rust 1.69.0 on Windows	2m 11s
Build with rust 1.69.0 on macOS	1m 6s
Build with rust stable on Linux	53s
Build with rust stable on Windows	2m 48s
Build with rust stable on macOS	1m 7s
Build with rust beta on Linux	56s
Build with rust beta on Windows	2m 4s
Build with rust beta on macOS	58s
Build with rust nightly on Linux	58s
Build with rust nightly on Windows	2m 19s
Build with rust nightly on macOS	1m 12s
	21m 11s

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