Update bitnami/git Docker tag to v2.39.1

This MR contains the following updates:

Package	Type	Update	Change
bitnami/git	ironbank-docker	minor	2.38.0-debian-11-r0 -> 2.39.1-debian-11-r0
bitnami/git		minor	2.38.0 -> 2.39.1
bitnami/git	stage	minor	2.38.0-debian-11-r0 -> 2.39.1-debian-11-r0

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