Fix bug in rustls-no-provider #2783

Job	Run time
build_versions (stable)	21s
Test	53s
build_versions (beta)	20s
Test	59s
Test (charset)	1m 4s
build_versions (1.71.1)	21s
cargo-deny (aarch64-apple-ios)	18s
Test (charset)	1m 3s
Test (cookies)	1m 4s
cargo-deny (aarch64-linux-android)	18s
Test (cookies)	1m 14s
Test (socks-proxy)	56s
cargo-deny (i686-pc-windows-gnu)	21s
Docs	1m 49s
Test (socks-proxy)	1m 1s
Test (gzip)	52s
cargo-deny (i686-pc-windows-msvc)	20s
Test (gzip)	1m 1s
Test (brotli)	53s
cargo-deny (i686-unknown-linux-gnu)	19s
Lint	38s
Test (brotli)	1m 1s
Test (json)	52s
cargo-deny (wasm32-unknown-unknown)	26s
Test (json)	1m 4s
Test (native-tls)	1m 2s
cargo-deny (x86_64-apple-darwin)	18s
Test (native-tls)	1m 5s
Test (rustls-no-provider)	59s
cargo-deny (x86_64-apple-ios)	21s
cargo-deny (x86_64-pc-windows-gnu)	18s
cargo-deny (x86_64-pc-windows-msvc)	21s
cargo-deny (x86_64-unknown-linux-gnu)	18s
cargo-deny (x86_64-unknown-redox)	21s
	24m 31s

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