Update OpenSSF badge (#842)

Author: lucacome

README.md

@@ -1,5 +1,5 @@
 <!-- markdownlint-disable-next-line first-line-h1 -->
-[![OpenSSFScorecard](https://api.securityscorecards.dev/projects/github.com/nginxinc/nginx-prometheus-exporter/badge)](https://api.securityscorecards.dev/projects/github.com/nginxinc/nginx-prometheus-exporter)
+[![OpenSSFScorecard](https://api.securityscorecards.dev/projects/github.com/nginxinc/nginx-prometheus-exporter/badge)](https://scorecard.dev/viewer/?uri=github.com/nginxinc/nginx-prometheus-exporter)
 [![CI](https://github.com/nginxinc/nginx-prometheus-exporter/actions/workflows/ci.yml/badge.svg)](https://github.com/nginxinc/nginx-prometheus-exporter/actions/workflows/ci.yml)
 [![FOSSA Status](https://app.fossa.com/api/projects/custom%2B5618%2Fgithub.com%2Fnginxinc%2Fnginx-prometheus-exporter.svg?type=shield)](https://app.fossa.com/projects/custom%2B5618%2Fgithub.com%2Fnginxinc%2Fnginx-prometheus-exporter?ref=badge_shield)
 [![Go Report Card](https://goreportcard.com/badge/github.com/nginxinc/nginx-prometheus-exporter)](https://goreportcard.com/report/github.com/nginxinc/nginx-prometheus-exporter)