consolidate tag to version helpers

check_command.go

@@ -72,12 +72,12 @@ func (r byVersion) Less(i, j int) bool {
 		return false
 	}
 
-	first, err := semver.New(dropLeadingAlpha(*r[i].TagName))
+	first, err := semver.New(determineVersionFromTag(*r[i].TagName))
 	if err != nil {
 		return true
 	}
 
-	second, err := semver.New(dropLeadingAlpha(*r[j].TagName))
+	second, err := semver.New(determineVersionFromTag(*r[j].TagName))
 	if err != nil {
 		return false
 	}

strings.go

@@ -1,13 +0,0 @@
-package resource
-
-import "unicode"
-
-func dropLeadingAlpha(s string) string {
-	for i, r := range s {
-		if !unicode.IsLetter(r) {
-			return s[i:]
-		}
-	}
-
-	return ""
-}