Upgrade pulumi-go-provider (#268)

Fixes https://github.com/pulumi/pulumi-docker-build/issues/262.

@iwahbe I realized while putting this together that the provider config
case wasn't actually tested e2e, and I'm skeptical it was ever actually
working. I think it would be reasonable to pull in
https://github.com/pulumi/pulumi-docker-build/pull/253 IMO.

CHANGELOG.md

@@ -2,6 +2,13 @@
 
 ### Fixed
 
+- Fixed an issue where registry authentication couldn't be specified on the
+  provider. (https://github.com/pulumi/pulumi-docker-build/issues/262)
+
+## 0.0.6 (2024-08-13)
+
+### Fixed
+
 - Refreshing an `Index` resource will no longer fail if its stored credentials
   have expired. (https://github.com/pulumi/pulumi-docker-build/pull/194)