Convert NewProvider/NewMutatorProvider to generic providers API

Convert all of the callers to NewProvider and NewMutatorProvider
to use a generic type parameter instead of an example object.

Bug: 316410648
Test: builds
Change-Id: Ic9cdafc87336e26730d3fd596df05de0e7267542
diff --git a/testing/code_metadata.go b/testing/code_metadata.go
index 9e20ec6..53bd07b 100644
--- a/testing/code_metadata.go
+++ b/testing/code_metadata.go
@@ -20,6 +20,7 @@
 	"android/soong/android"
 	"android/soong/testing/code_metadata_internal_proto"
 	"github.com/google/blueprint"
+
 	"google.golang.org/protobuf/proto"
 )
 
@@ -83,7 +84,7 @@
 	IntermediatePath android.WritablePath
 }
 
-var CodeMetadataProviderKey = blueprint.NewProvider(CodeMetadataProviderData{})
+var CodeMetadataProviderKey = blueprint.NewProvider[CodeMetadataProviderData]()
 
 func (module *CodeMetadataModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	metadataList := make(