bump version openresty

[tahriabd]

What version of Cloud Foundry and CF CLI are you using? (i.e. What is the output of running cf curl /v2/info && cf version?
{
"build": "v42.6.0",
"support": "",
"version": 42,
"api_version": "2.239.0",
"osbapi_version": "2.15",
}
cf version 7.7.11+8c69330.2024-07-09

What version of the buildpack you are using?
nginx_buildpack v1.2.20

If you were attempting to accomplish a task, what was it you were attempting to do?
Several vulnerabilities affects openresty 1.25.3.2 using nginx 1.25.3

What did you expect to happen?
Upgrade Openrestry to 1.27.1.1

What was the actual behavior?
Openresty 1.25.3.2 (cf https://github.com/cloudfoundry/nginx-buildpack/blob/v1.2.20/manifest.yml#L59)

Please confirm where necessary:
https://github.com/cloudfoundry/nginx-buildpack/blob/v1.2.20/manifest.yml#L59