Add the --create-namespace command in order to create directly and automatically the namespace through helm

[scraly]

Description

• Add the --create-namespace command in order to create directly and automatically the namespace through helm
• Delete the useless kubectl create namespace microcks command

[github-actions]

👋 @scraly

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[lbroudoux]

LGTM. Thanks. This is more straghtforward, you're right.

[github-actions]

🎉 @scraly

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