[bug fix] fix code formatting in CI

[kvedala]

Description of Change

Added explicit clang-format code and corresponding config file. Tested on other pull-requests where the formatting failed.

Closes #1032

Checklist

• Added description of change
• Added file name matches File name guidelines
• Added tests and example, test must pass
  Please see commit history for tests. I had to undo them but the actions will show that the execution works as expected.
• Added documentation so that the program is self-explanatory and educational - Doxygen guidelines
• Relevant documentation/comments is changed or added
• PR title follows semantic commit guidelines
• Search previous suggestions before making a new one, as yours may be a duplicate.
• I acknowledge that all my contributions will be made under the project's license.

Notes: