fix: let amend_pypi_purls() always use reqwest client with the mirror middle ware #1792

Job	Run time
check-cli-docs	1m 42s
Cargo Machete	1m 1s
Cargo Vendor	1m 1s
determine changes	10s
pre-commit	2m 58s
build binary \| macos aarch64	3m 12s
build binary \| macos x86_64	0s
build binary \| linux x86_64	5m 18s
build binary \| windows aarch64	0s
build binary \| windows x86_64	5m 11s
cargo test \| ubuntu	4m 32s
cargo test \| macos aarch64	5m 7s
cargo test \| windows	7m 47s
cargo test \| macos x86_64	0s
cargo rustdoc \| ubuntu	1m 20s
Pytest \| macos aarch64	1m 33s
Integration tests \| macos aarch64	0s
Downstream tests \| macos aarch64	0s
Wheel Tests \| macos aarch64 / Test Installation of Common Wheels \| macos-aarch64	1m 51s
Pytest \| windows x86_64	6m 6s
Integration tests \| windows x86_64	0s
Downstream tests \| windows x86_64	0s
Wheel Tests \| windows x86_64 / Test Installation of Common Wheels \| windows-x86_64	4m 45s
Pytest \| linux x86_64	1m 4s
Integration tests \| linux x86_64	0s
Downstream tests \| linux x86_64	0s
Wheel Tests \| linux x86_64 / Test Installation of Common Wheels \| linux-x86_64	2m 3s
	56m 41s

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