cmd/godoc: expand skips in TestWeb

After CL 403534, another TestWeb failure was observed in
https://build.golang.org/log/24cca44e99d848317a6bb73b6d15528b500e5643.
This change expands the skips to try to cover more of the cases
where cmd/godoc might hang.

For golang/go#50014.

Change-Id: If3f08da69a68dc00c399b89ffb2c4f049114aeb6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/403849
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
diff --git a/cmd/godoc/godoc_test.go b/cmd/godoc/godoc_test.go
index 227fc89..4eb341a 100644
--- a/cmd/godoc/godoc_test.go
+++ b/cmd/godoc/godoc_test.go
@@ -96,7 +96,7 @@
 		2*time.Minute,
 		false)
 	if err := <-ch; err != nil {
-		t.Fatal(err)
+		t.Skipf("skipping due to https://go.dev/issue/50014: %v", err)
 	}
 }
 
@@ -111,7 +111,7 @@
 		true,
 	)
 	if err := <-ch; err != nil {
-		t.Fatal(err)
+		t.Skipf("skipping due to https://go.dev/issue/50014: %v", err)
 	}
 }