Fix kagome docker push step

[kamilsa]

Referenced issues

None

Description of the Change

• After Reduce kagome-dev #2064 docker was removed from kagome-dev, which lead to failure during push step on master
• This PR fixes that

Possible Drawbacks

• Docker installation was moved to the end of dockerfile

Checklist Before Opening a PR

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1. Code is formatted: Have you run your code through clang-format to ensure it adheres to the project's coding standards? Yes
2. Code is documented: Have you added comments and documentation to your code according to the guidelines in the project's contributing guidelines? Yes
3. Self-review: Have you reviewed your own code to ensure it is free of typos, syntax errors, logical errors, and unresolved TODOs or FIXME without linking to an issue? Yes
4. Zombienet Tests: Have you ensured that the zombienet tests are passing? Zombienet is a network simulation and testing tool used in this project. It's important to ensure that these tests pass to maintain the stability and reliability of the project. No