`nogo` error with Golang 1.20

### What version of rules_go are you using?

`0.38.1`

### What version of gazelle are you using?

`0.26.0`

### What version of Bazel are you using?

`6.0.0`

### Does this issue reproduce with the latest releases of all the above?

Yes

### What operating system and processor architecture are you using?

Linux

### What did you do?

```
go_register_toolchains(
nogo = "@//:nogo",
version = "1.20",
)
```

### What did you expect to see?

Success

### What did you see instead?

```
ERROR: /private/var/tmp/_bazel_user/nnn/external/io_bazel_rules_go/go/tools/builders/BUILD.bazel:77:10: no such package '@org_golang_x_tools//internal/facts': BUILD file not found in directory 'internal/facts' of external repository @org_golang_x_tools. Add a BUILD file to a directory to mark it as a package. and referenced by '@io_bazel_rules_go//go/tools/builders:nogo_srcs'
```

Start by reproducing the `go_register_toolchains` configuration with rules_go 0.38.1, Gazelle 0.26.0, Bazel 6.0.0, and Go 1.20. Read `go/tools/builders/BUILD.bazel` around line 77 and investigate why `@org_golang_x_tools//internal/facts` is unavailable; done means the configuration builds successfully without the reported `nogo` error.

Written by the indexing model from the issue text.