Fix docker runner test cases to work without docker client being present

[ritwik-g]

What

• Modified the docker client test cases to work without actual docker daemon

Why

How

Can this PR break any existing features. If yes, please list possible items. If no, please explain why. (PS: Admins do not merge the PR without this section filled)

Database Migrations

Env Config

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I have read and understood the Contribution Guidelines.

[gaya3-zipstack]

Looks good.

[github-actions]

filepath	function	$$\textcolor{#23d18b}{\tt{passed}}$$	SUBTOTAL
$$\textcolor{#23d18b}{\tt{runner/src/unstract/runner/clients/test\_docker.py}}$$	$$\textcolor{#23d18b}{\tt{test\_logs}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{runner/src/unstract/runner/clients/test\_docker.py}}$$	$$\textcolor{#23d18b}{\tt{test\_cleanup}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{runner/src/unstract/runner/clients/test\_docker.py}}$$	$$\textcolor{#23d18b}{\tt{test\_cleanup\_skip}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{runner/src/unstract/runner/clients/test\_docker.py}}$$	$$\textcolor{#23d18b}{\tt{test\_client\_init}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{runner/src/unstract/runner/clients/test\_docker.py}}$$	$$\textcolor{#23d18b}{\tt{test\_get\_image\_exists}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{runner/src/unstract/runner/clients/test\_docker.py}}$$	$$\textcolor{#23d18b}{\tt{test\_get\_image}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{runner/src/unstract/runner/clients/test\_docker.py}}$$	$$\textcolor{#23d18b}{\tt{test\_get\_container\_run\_config}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{runner/src/unstract/runner/clients/test\_docker.py}}$$	$$\textcolor{#23d18b}{\tt{test\_get\_container\_run\_config\_without\_mount}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{runner/src/unstract/runner/clients/test\_docker.py}}$$	$$\textcolor{#23d18b}{\tt{test\_run\_container}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{TOTAL}}$$		$$\textcolor{#23d18b}{\tt{9}}$$	$$\textcolor{#23d18b}{\tt{9}}$$

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud