Fixed the chatbot observer and update Dockerfiles for the pipelines

[cla-assistant[bot]]

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:x: sevvalekici

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[cla-assistant[bot]]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
0 out of 2 committers have signed the CLA.

:x: Sevval Ekici
:x: sevvalekici

---

Sevval Ekici seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}