fix: Resolve Buffer 32 Issue in DBC to DBF Database Conversion

[esloch]

The line buf[header-1] = 0x0D; in the dbc2dbf function sets the last byte of the file header to the ASCII code for carriage return (CR). This is done to ensure that the header ends with a CR character, which is required by the dBase format. The dBase format is a file format used for database management systems, and the .dbf file extension is commonly used for dBase files.

• Closes #151
• Closes #6:
  • Fixed a buffer header issue.
  • Added new tests for DBC to DBF conversion.
  • Updated Python version in CI configuration.
  • Introduced individual tests for each function.
  • Added 'pysus' dependency installation.
  • Made adjustments to the CI workflow.
  • Enhanced test coverage for DBC file validation.
  • Added the 'chardet' dependency.