internal: add get-logs GitHub workflow

[Pospelove]

[!IMPORTANT] Add GitHub workflow and Bash script to retrieve server logs based on branch and grep arguments.

• GitHub Workflow:
  • Adds get-logs.yml for retrieving server logs with repository_dispatch and workflow_dispatch triggers.
  • Supports inputs for branch and grep-arg.
  • Uses actions/checkout@v4 to checkout the repository.
• Bash Script:
  • Adds get_logs_from_server.sh to connect to a remote server and fetch logs.
  • Validates environment variables and sets up SSH connection.
  • Executes docker logs command, filtering with grep.
• Environment Setup:
  • Uses secrets for SSH connection details.
  • Handles errors with report_fail() function in the script.

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