[BUG] deployDockerImageToACR does not handle context directory for the build

[markmassad]

Describe the bug
The deployDockerImageToACR() function errors out due to directory not found. This is the context directory for the build. Here is the command that errors out line 649 of deploy.sh

az acr build --only-show-errors
--registry $containerRegistry
--file $scriptDir/../docker/Dockerfile-backend
--image $GRAPHRAG_IMAGE
$scriptDir/../

The problem is in the $scriptDir/../ as it produces the following error:
'/mnt/c/Dev/Projects/CES/graphrag-accelerator-main/infra/../' doesn't exist.

To Reproduce
Steps to reproduce the behavior:
I have the GIT project at c:\Dev\Projects\CES\graphragMin\

Workaround is to run from the base directory "infra":
az acr build --registry $containerRegistry --file ../docker/Dockerfile-backend --image graphrag:backend ../