Add a support for Java standard networking properties for proxy settings

[mkonzal]

Is your feature request related to a problem? Please describe.

Standard Apache Maven plugins takeover the the standard system properties like https.proxyHost, https.proxy and http.nonProxyHosts. This is not the case for the Artifactory Maven plugin. It allows to share the proxy configuration during the build for all java based tools (by the environment variable JAVA_TOOL_OPTIONS) without the need of individual settings.

Describe the solution you'd like to see

The networking standard system properties should be used when available and no other system property for proxy settings is available (like artifactory.proxy.host, artifactory.proxy.port).

Describe alternatives you've considered

No response

Additional context

No response