chore: add resources to deploy with helm and terraform connection-str…

[xoanmm]

Resources have been created for the Process Azure Service Bus Queue by using connection string authentication scenario, both for the creation of resources in Azure using terraform through the files located in infra-as-code/connection-string and for the deployment of the manifests located in folder deploy/connection-string using a helm chart created through the files located in deploy/helm/keda-servicebus-connection-string for that purpose.

Also a Dockerfile was created for the order generator, and the code located in src/Keda.Samples.Dotnet.OrderGenerator/Program.cs has been modified to be able to check the messages from a variable called ORDER_AMOUNT to be able to launch this job in a disatended way. For this to work it's necessary to create a new image with the code with modifications, and push this image to registry ghcr.io/kedacore/sample-dotnet-order-generator-servicebus using the latest tag.

The purpose of these change are facilitate the task of testing this scenario by reducing the number of manual steps and automating the process.

Checklist

• Commits are signed with Developer Certificate of Origin (DCO)
• A PR is opened to update the documentation on our docs repo

[xoanmm]

@tomkerkhove I didn't add a PR in docs repo because I think it's not necessary, I have marked only to pass the checks and let the pipelines be launched, please feel free to comment any improvement or change to be made.

[zroubalik]

@tomkerkhove PTAL

[tomkerkhove]

Jup, still on my list but need some more time - Sorry!

[xoanmm]

Any chance to take a look @tomkerkhove ?