Set PIP_USER in base image #302

Job	Run time
arm64-base / build-test-upload	8m 45s
amd64-base / build-test-upload	5m 4s
amd64-base-with-services	0s
amd64-lab	0s
amd64-full-stack	0s
amd64-push-dockerhub	0s
amd64-push-ghcr (base-with-services) / tag-push	9s
amd64-push-ghcr (lab) / tag-push	11s
amd64-push-ghcr (base) / tag-push	15s
amd64-push-ghcr (full-stack) / tag-push	9s
arm64-lab	0s
arm64-base-with-services	0s
arm64-full-stack	0s
arm64-push-dockerhub	0s
arm64-push-ghcr (lab) / tag-push	13s
arm64-push-ghcr (base) / tag-push	18s
arm64-push-ghcr (base-with-services) / tag-push	12s
arm64-push-ghcr (full-stack) / tag-push	15s
merge-tags-dockerhub	0s
merge-tags-ghcr (base) / merge-tags	10s
merge-tags-ghcr (base-with-services) / merge-tags	14s
merge-tags-ghcr (lab) / merge-tags	12s
merge-tags-ghcr (full-stack) / merge-tags	8s
release	0s
	16m 15s

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