ci(commitlint): ignore dependabot's commit messages (#17)

Author: Serpentiel

commitlint.config.js

@@ -0,0 +1,4 @@
+module.exports = {
+  extends: ["@commitlint/config-conventional"],
+  ignores: [(msg) => /Signed-off-by: dependabot\[bot]/m.test(msg)],
+};