Add support for "ProviderConvertible"

[mr-thierry]

Is your feature request related to a problem? Please describe.
The plugin doesn't support "ProviderConvertible". To be honest, my Gradle understanding is very limited and I'm not sure what are "ProviderConvertible" and how they differ from other dependency. If I put this in my Gradle file:

dependencyAnalysis {
  issues {
    all {
      onUnusedDependencies {     
        exclude(libs.compose.material.icons)
      }
    }
  }
}

It fails with the error:

> Could not find method exclude() for arguments [org.gradle.accessors.dm.LibrariesForLibs$ComposeMaterialIconsLibraryAccessors@5c86a80d] on object of type com.autonomousapps.extension.Issue.

This fixes the issue:

dependencyAnalysis {
  issues {
    all {
      onUnusedDependencies {     
        exclude(libs.compose.material.icons.asProvider())
      }
    }
  }
}

By the way, this is what ComposeMaterialIconsLibraryAccessors looks like:

    public static class ComposeMaterialIconsLibraryAccessors extends SubDependencyFactory implements DependencyNotationSupplier {

        public ComposeMaterialIconsLibraryAccessors(AbstractExternalDependencyFactory owner) { super(owner); }

        /**
         * Dependency provider for <b>icons</b> with <b>androidx.compose.material:material-icons-core</b> coordinates and
         * with <b>no version specified</b>
         * <p>
         * This dependency was declared in catalog libs.versions.toml
         */
        public Provider<MinimalExternalModuleDependency> asProvider() {
            return create("compose.material.icons");
        }

        /**
         * Dependency provider for <b>extended</b> with <b>androidx.compose.material:material-icons-extended</b> coordinates and
         * with <b>no version specified</b>
         * <p>
         * This dependency was declared in catalog libs.versions.toml
         */
        public Provider<MinimalExternalModuleDependency> getExtended() {
            return create("compose.material.icons.extended");
        }

    }

ComposeMaterialIconsLibraryAccessors extends DependencyNotationSupplier, which in turn extends ProviderConvertible

I'm raising this feature request because it would be great if we could put directly exclude(libs.compose.material.icons). Should be easy to just modify Issue.kt to also support ProviderConvertible, which has function asProvider().