Ensure our proxy helpers forward metadata #1722

Job	Run time
cloud-test	0s
cloud-test	0s
cloud-test	0s
build-and-test (ubuntu-latest, oldstable)	16m 30s
build-and-test (ubuntu-latest, oldstable)	16m 30s
build-and-test (ubuntu-latest, oldstable)	16m 30s
build-and-test (ubuntu-latest, stable)	25m 1s
build-and-test (ubuntu-latest, stable)	25m 1s
build-and-test (ubuntu-latest, stable)	25m 1s
build-and-test (macos-intel, oldstable)	17m 50s
build-and-test (macos-intel, oldstable)	19m 11s
build-and-test (macos-intel, oldstable)	17m 56s
build-and-test (macos-intel, stable)	19m 31s
build-and-test (macos-intel, stable)	19m 31s
build-and-test (macos-intel, stable)	19m 31s
build-and-test (macos-arm, oldstable)	17m 13s
build-and-test (macos-arm, oldstable)	17m 13s
build-and-test (macos-arm, oldstable)	17m 13s
build-and-test (macos-arm, stable)	16m 49s
build-and-test (macos-arm, stable)	16m 49s
build-and-test (macos-arm, stable)	16m 49s
build-and-test (windows-latest, oldstable)	22m 9s
build-and-test (windows-latest, oldstable)	22m 9s
build-and-test (windows-latest, oldstable)	22m 9s
build-and-test (windows-latest, stable)	22m 49s
build-and-test (windows-latest, stable)	22m 49s
build-and-test (windows-latest, stable)	22m 49s
features-test / test	2m 8s
features-test / test	2m 8s
features-test / test	2m 8s
	8h 1m 27s

Provide feedback