Incomplete system properties in SessionBuilderSupplier

The SessionBuilderSupplier provided for Maven3 sets the java System.properties as systemProperties of the Session to be build.

https://github.com/apache/maven-resolver/blob/d13019ce5fa38c0951ca0fb0c62a3f5f1254cffc/maven-resolver-supplier-mvn3/src/main/java/org/eclipse/aether/supplier/SessionBuilderSupplier.java#L72

But it does not add environment variables with their key prefixed with env. like it is for example done in Maven or MIMA:

https://github.com/maveniverse/mima/blob/e851dee08706024929f1004e18e3dbd7b3522b36/runtime/standalone-shared/src/main/java/eu/maveniverse/maven/mima/runtime/shared/StandaloneRuntimeSupport.java#L519-L530

From looking at the code of the SessionBuilderSupplier for Maven 4, which relys heavily on {{org.apache.maven.repository.internal.MavenSessionBuilderSupplier }}system properties are not set at all.

My suggestion is to extend the Maven3 SessionBuilderSupplier in Maven-Resolver and in maven4 MavenSessionBuilderSupplier to have system-properties and environment variables fully set by default.