tests/e2e: fix version matching

Signed-off-by: Gyuho Lee <leegyuho@amazon.com>

tests/e2e/metrics_test.go

@@ -44,8 +44,8 @@ func metricsTest(cx ctlCtx) {
 	if strings.HasSuffix(ver, "-pre") {
 		ver = strings.Replace(ver, "-pre", "", 1)
 	}
-	if strings.HasSuffix(ver, "-rc.0") {
-		ver = strings.Replace(ver, "-rc.0", "", 1)
+	if strings.HasSuffix(ver, "-rc.1") {
+		ver = strings.Replace(ver, "-rc.1", "", 1)
 	}
 
 	i := 0