gopls/internal/test/integration: skip x_tools-gotip-openbsd-amd64 (7.6)

The new openbsd/amd64 7.6 builder is generally working well everywhere
but this one place. Add a skip for now to buy time to investigate this
issue.

Note that the previous openbsd/amd64 7.2 builder was also running into
problems with these tests, as tracked in go.dev/issue/54461, though it
wasn't happening as consistently as it is now.

For golang/go#72145.
For golang/go#54461.

Change-Id: I6dd34fcdcca99c90282f0b9119936efa6bebf458
Cq-Include-Trybots: luci.golang.try:x_tools-gotip-openbsd-amd64
Reviewed-on: https://go-review.googlesource.com/c/tools/+/658015
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Cherry Mui <[email protected]>
Reviewed-by: Alan Donovan <[email protected]>
Auto-Submit: Dmitri Shuralyov <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>

Author: dmitshur

gopls/internal/test/integration/runner.go

@@ -266,10 +266,10 @@ func ConnectGoplsEnv(t testing.TB, ctx context.Context, sandbox *fake.Sandbox, c
 // longBuilders maps builders that are skipped when -short is set to a
 // (possibly empty) justification.
 var longBuilders = map[string]string{
-	"openbsd-amd64-64":        "go.dev/issue/42789",
-	"openbsd-386-64":          "go.dev/issue/42789",
-	"openbsd-386-68":          "go.dev/issue/42789",
-	"openbsd-amd64-68":        "go.dev/issue/42789",
+	"x_tools-gotip-openbsd-amd64":  "go.dev/issue/72145",
+	"x_tools-go1.24-openbsd-amd64": "go.dev/issue/72145",
+	"x_tools-go1.23-openbsd-amd64": "go.dev/issue/72145",
+
 	"darwin-amd64-10_12":      "",
 	"freebsd-amd64-race":      "",
 	"illumos-amd64":           "",