Fix 1.63.0 MSRV #1517

Job	Run time
Docs	2m 22s
Check Style	16s
unstable features	54s
linux / stable	1m 7s
MSRV	4m 24s
linux / beta	1m 32s
linux / nightly	1m 59s
Android	48s
macOS / stable	2m 45s
WASM	1m 44s
windows / stable-x86_64-msvc	5m 54s
windows / stable-i686-msvc	6m 46s
windows / stable-x86_64-gnu	7m 24s
windows / stable-i686-gnu	8m 46s
feat.: default-tls disabled	2m 2s
feat.: rustls-tls	2m 17s
feat.: rustls-tls-manual-roots	2m 29s
feat.: native-tls	2m 18s
feat.: default-tls and rustls-tls	2m 41s
feat.: cookies	1m 55s
feat.: blocking	2m 7s
feat.: gzip	2m 19s
feat.: brotli	2m 7s
feat.: deflate	1m 53s
feat.: json	1m 54s
feat.: multipart	1m 54s
feat.: stream	1m 59s
feat.: socks/default-tls	1m 54s
feat.: socks/rustls-tls	2m 0s
feat.: trust-dns	2m 11s
CI is green	0s
	1h 20m 41s

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