This pull request includes several changes to the internal/cli/cli.go file and its corresponding tests to improve error handling and consistency in exit codes. The most important changes involve updating exit codes, refining error handling in the Run method, and enhancing test cases to reflect these updates.

Error Handling and Exit Codes:

• Updated ExitCodeParseFlagError and ExitCodeFail constants to use distinct values (2 instead of 1). (internal/cli/cli.go)
• Refined error handling in the Run method by separating the assignment and checking of errors for replaceProcess. (internal/cli/cli.go) [1] [2]

Test Enhancements:

• Added expectedCode to test cases to check for the correct exit codes. (internal/cli/cli_test.go)
• Updated test cases to use the new exit code values (2 instead of 1). (internal/cli/cli_test.go) [1] [2] [3] [4]
• Removed unnecessary blank lines in test functions for better readability. (internal/cli/cli_test.go) [1] [2]