Change regexp to allow uppercase letters in username/organization name

main.go

@@ -78,7 +78,7 @@ type Repo struct {
 }
 
 var patternOld = regexp.MustCompile(`^/([a-z0-9][-a-z0-9]+/)?((?:v0|v[1-9][0-9]*)(?:\.0|\.[1-9][0-9]*){0,2})/([a-zA-Z][-a-zA-Z0-9]*)(?:\.git)?((?:/[a-zA-Z][-a-zA-Z0-9]*)*)$`)
-var patternNew = regexp.MustCompile(`^/([a-z0-9][-a-z0-9]+/)?([a-zA-Z][-a-zA-Z0-9]*)\.((?:v0|v[1-9][0-9]*)(?:\.0|\.[1-9][0-9]*){0,2})(?:\.git)?((?:/[a-zA-Z][-a-zA-Z0-9]*)*)$`)
+var patternNew = regexp.MustCompile(`^/([a-zA-Z0-9][-a-zA-Z0-9]+/)?([a-zA-Z][-a-zA-Z0-9]*)\.((?:v0|v[1-9][0-9]*)(?:\.0|\.[1-9][0-9]*){0,2})(?:\.git)?((?:/[a-zA-Z][-a-zA-Z0-9]*)*)$`)
 
 func handler(resp http.ResponseWriter, req *http.Request) {
 	if req.URL.Path == "/health-check" {