The checks for the conventional commits have some flaws

[ilyasmez]

For some context: #15

The current implementation to check against the Conventional Commits specs is a little bit loose.
Right now it considers the following commit messages "feature 1", "feather weight", "defeat your fear", "not-a-feature really" as minor change, and "f!rstword", "Hi! How are you?" as a major.

Let's use some robust checks. Regex can be a good solution.