Error: git-lfs filter-process: git-lfs: command not found

[Bradley Newman]

I'm running a custom action that runs this .sh script:

reset.sh

#!/bin/bash
cd /User/jane.doe/repo
git reset --hard --no-quiet

I get the following error in Sourcetree:

git-lfs filter-process: git-lfs: command not found
fatal: the remote end hung up unexpectedly

System Info:

macOS 10.15.4
Sourcetree 4.0.1 (234)
System Git 2.23.0
System git-lfs 2.10.0

I do not get this error when running the same script from a Terminal.