ci: skip known flakey test on go1.15 windows

Raised as golang.org/issue/44137

Change-Id: I45f7e2a89683f33047a7c2be6020966ec14f2f9c
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/8661
Reviewed-by: CUE cueckoo <cueckoo@gmail.com>
Reviewed-by: Paul Jolly <paul@myitcv.org.uk>
diff --git a/cmd/cue/cmd/testdata/script/get_go_types.txt b/cmd/cue/cmd/testdata/script/get_go_types.txt
index 9a99a24..0198d3f 100644
--- a/cmd/cue/cmd/testdata/script/get_go_types.txt
+++ b/cmd/cue/cmd/testdata/script/get_go_types.txt
@@ -6,6 +6,8 @@
 # that is left for other tests, so that this test can focus
 # on the various rules of get go.
 
+[go1.15] [windows] skip 'flakey per golang.org/issue/44137'
+
 # cue get go
 cue get go --local ./...
 cmp ./pkg3/pkg3_go_gen.cue ./pkg3/pkg3_go_gen.cue.golden