[BUG] Fix 404 NOT FOUND issue caused by endpoint tail slash #6980

Job	Run time
build-windows (3.8)	5m 3s
build-windows (3.8)	5m 3s
build-ubuntu (3.8, Repository only)	1m 36s
build-ubuntu (3.8, Repository only)	1m 36s
build-ubuntu (3.8, Everything else)	3m 57s
build-ubuntu (3.8, Everything else)	3m 57s
build-ubuntu (3.13, Repository only)	1m 36s
build-ubuntu (3.13, Repository only)	1m 36s
build-ubuntu (3.13, Everything else)	21m 45s
build-ubuntu (3.13, Everything else)	3m 38s
build-ubuntu (3.13, lfs)	53s
build-ubuntu (3.13, lfs)	53s
build-ubuntu (3.8, fastai)	1m 36s
build-ubuntu (3.8, fastai)	1m 36s
build-ubuntu (3.10, fastai)	59s
build-ubuntu (3.10, fastai)	59s
build-ubuntu (3.8, tensorflow)	1m 6s
build-ubuntu (3.8, tensorflow)	1m 6s
build-ubuntu (3.10, tensorflow)	58s
build-ubuntu (3.10, tensorflow)	58s
build-ubuntu (3.8, Python 3.8, torch_1.11)	1m 11s
build-ubuntu (3.8, Python 3.8, torch_1.11)	1m 11s
build-ubuntu (3.12, torch_latest)	1m 0s
build-ubuntu (3.12, torch_latest)	1m 0s
	1h 5m 13s

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