New release with support of NginxModuleOtelExporterOtlpHeaders

[fludo]

This flag is documented but not usable with the last release

Is your feature request related to a problem? Yes, after fixing the config, I found that the instrumentation would not work because of unsuported header param. https://github.com/open-telemetry/opentelemetry-cpp-contrib/issues/284

Describe the solution you'd like A new release, including 1.22.0 Nginx support (ubuntu)