upgrade control center and feature pack for 24.8.0.rc1 [skip ci] (#7718)

Author: ZheSun88

versions.json

@@ -406,7 +406,7 @@
             "version": "1.0.0"
         },
         "control-center": {
-            "javaVersion": "1.3.0.beta3"
+            "javaVersion": "1.3.0.rc1"
         },
         "copilot": {
             "javaVersion": "24.8.0.beta3"
@@ -573,7 +573,7 @@
             "pro": true
         },
         "vaadin-feature-pack": {
-            "javaVersion": "24.8.0.beta1"
+            "javaVersion": "24.8.0.rc1"
         },
         "vaadin-license-checker": {
             "javaVersion": "1.13.4"