bazel: remove final tanzanite references

Tanzanite is gone.

Part of DEVINF-1489
Release note: None

Author: jlinder

pkg/build/engflow/engflow_test.go

@@ -62,10 +62,10 @@ func TestConstructJSONReport(t *testing.T) {
 		},
 	}
 
-	jsonReport, errs := ConstructJSONReport(i, "tanzanite")
+	jsonReport, errs := ConstructJSONReport(i, "mesolite")
 	require.Empty(t, errs)
 	require.Equal(t, jsonReport, JsonReport{
-		Server:       "tanzanite",
+		Server:       "mesolite",
 		InvocationId: "fake-invocation-id",
 		StartedAt:    "2024-01-18T20:50:47Z",
 		FinishedAt:   "2024-01-18T20:50:54Z",

pkg/cmd/bazci/bazel-github-helper/main.go

@@ -33,7 +33,7 @@ import (
 
 var (
 	eventStreamFile = flag.String("eventsfile", "", "eventstream file produced by bazel build --build_event_binary_file")
-	serverName      = flag.String("servername", "mesolite", "name of the EngFlow cluster (mesolite, tanzanite)")
+	serverName      = flag.String("servername", "mesolite", "name of the EngFlow cluster (mesolite)")
 	tlsClientCert   = flag.String("cert", "", "TLS client certificate for accessing EngFlow, probably a .crt file")
 	tlsClientKey    = flag.String("key", "", "TLS client key for accessing EngFlow")
 	jsonOutFile     = flag.String("jsonout", "", "output JSON file")