feat!: Allow configuring the downloader when creating a blobs protoco… #328

Job	Run time
Cross Build Only (x86_64-unknown-freebsd)	51s
Android Build Only (aarch64-linux-android)	1m 10s
Android Build Only (armv7-linux-androideabi)	1m 12s
cargo deny	31s
clippy_check	1m 44s
Checking fmt	19s
codespell	6s
check_semver	1m 22s
Checking docs	1m 12s
Minimal Supported Rust Version	1m 2s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	2m 20s
Cross Test (i686-unknown-linux-gnu)	1m 30s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	1m 33s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	2m 13s
CI Test Suite / Tests (ubuntu-latest, stable, default)	1m 23s
CI Test Suite / Tests (ubuntu-latest, stable, none)	1m 6s
CI Test Suite / Tests (ubuntu-latest, stable, all)	1m 42s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	1m 28s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	1m 33s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	1m 38s
	25m 55s

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