bug(cli): fix conversion error

[finger563]

Description

• Updated cli component so that CONFIG_ESP_CONSOLE_UART_NUM is cast to uart_port_t to prevent compiler warning that is treated as an error with latest esp-idf master branch.

Motivation and Context

With latest compilers installed from esp-idf/master branch (v5.2-dev-1736-ga2d76ad38a) the raw use of CONFIG_ESP_CONSOLE_UART_NUM results in an error about the use of an int as uart_port_t. This PR fixes that by adding an explicit cast.

How has this been tested?

Building the cli example.

Screenshots (if appropriate, e.g. schematic, board, console logs, lab pictures):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update
• Hardware (schematic, board, system design) change
• Software change

Checklist:

• My change requires a change to the documentation.
• I have added / updated the documentation related to this change via either README or WIKI

Software

• I have added tests to cover my changes.
• I have updated the .github/workflows/build.yml file to add my new test to the automated cloud build github action.
• All new and existing tests passed.
• My code follows the code style of this project.