dashboard: add known issue for solaris-amd64-oraclerel

For golang/go#52653.
Updates golang/go#51443.

Change-Id: Iaea8fab13ed979e54c827f0f3c4d705bdaff4ee4
Reviewed-on: https://go-review.googlesource.com/c/build/+/408701
Reviewed-by: Alex Rakoczy <alex@golang.org>
Auto-Submit: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>

dashboard/builders.go

@@ -2492,10 +2492,11 @@ func init() {
 		HostType: "host-illumos-amd64-jclulow",
 	})
 	addBuilder(BuildConfig{
-		Name:     "solaris-amd64-oraclerel",
-		HostType: "host-solaris-oracle-amd64-oraclerel",
-		Notes:    "Oracle Solaris release version",
-		FlakyNet: true,
+		Name:        "solaris-amd64-oraclerel",
+		HostType:    "host-solaris-oracle-amd64-oraclerel",
+		Notes:       "Oracle Solaris release version",
+		FlakyNet:    true,
+		KnownIssues: []int{51443},
 	})
 	addBuilder(BuildConfig{
 		Name:           "linux-ppc64-buildlet",