v69

Changelog

• b705800 Merge pull request #92 from codecrafters-io/test-for-argv0
• b26e32d test: update fixtures
• 6f84ae2 ci: add regenerated fixtures
• 78126e0 refactor: update secret code embedding to executable to be in pure go
• 1fb2bd2 feat: remove error messages from custom executable
• 3b9c23b ci: add regenerated fixtures
• 7045383 refactor: update custom executable to improve argument handling and output format
• 9c1face refactor: use a random executable name for test case execution
• 32df384 refactor: simplify expected output construction in test case
• d553e22 refactor: update test case to use multi-line assertion for command output
• 21bccea ci: add regenerated fixtures
• 9fdbf02 fix: adjust seek offset in command for correct output placement
• 8c80aaa test: add error handling test case for missing command line argument
• 0334dd9 feat: update custom executable to print error messages with argv[0]