build(deps): bump github.com/gookit/config/v2 from 2.2.6 to 2.2.7

Bumps [github.com/gookit/config/v2](https://github.com/gookit/config) from 2.2.6 to 2.2.7.
- [Release notes](https://github.com/gookit/config/releases)
- [Commits](https://github.com/gookit/config/compare/v2.2.6...v2.2.7)

---
updated-dependencies:
- dependency-name: github.com/gookit/config/v2
  dependency-version: 2.2.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/github.com/gookit/goutil/byteutil/check.go

@@ -2,3 +2,9 @@ package byteutil
 
 // IsNumChar returns true if the given character is a numeric, otherwise false.
 func IsNumChar(c byte) bool { return c >= '0' && c <= '9' }
+
+// IsAlphaChar returns true if the given character is a alphabet, otherwise false.
+func IsAlphaChar(c byte) bool {
+	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
+}
+