chore: Enable pre-commit with end-of-file check

[rhysparry]

This pull request includes updates to the commit linting and pre-commit configuration to improve code quality and enforce consistent formatting.

Commit linting improvements:

• .commitlint/hooks/commit-msg: Added a check to ensure commitlint is available before running the lint command.

Pre-commit configuration updates:

• .pre-commit-config.yaml: Added a new repository and hook for fixing end-of-file issues.

[rhysparry]

This change is part of the following stack:

• chore: Enable pre-commit with end-of-file check #52 ◀
  • chore(pre-commit): Trim trailing whitespace #53
    • chore(pre-commit): Add file integrity checks #54
      • chore(pre-commit): Remove UTF-8 byte order marker #55
        • chore(pre-commit): format C# with CSharpier #56
          • chore(pre-commit): enable commitlint #57
            • chore(pre-commit): enable GitHub action linting #58
              • chore(pre-commit): Configure pre-commit defaults #59

_{Change managed by git-spice.}