Merge pull request #38018 from apple/add-xcode-version-5.5

Update supported Xcode build number in build-script

Author: shahmishal

utils/build-script

@@ -58,7 +58,9 @@ _SUPPORTED_XCODE_BUILDS = [
     ("12.2", "12B45b"),
     ("12.3", "12C33"),
     ("12.4", "12D4e"),
-    ("12.5 beta 3", "12E5244e")
+    ("12.5 beta 3", "12E5244e"),
+    ("12.5", "12E262"),
+    ("13.0 beta", "13A5154h")
 ]
 
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