Update build_testapps.py

Author: a-maurice

scripts/gha/build_testapps.py

@@ -150,7 +150,7 @@
 _SUPPORTED_XCODE_CONFIGURATIONS = (
     "ReleaseForRunning", "Release", "Debug", "ReleaseForProfiling")
 
-_DEFAULT_TIMEOUT_SECONDS = 1200
+_DEFAULT_TIMEOUT_SECONDS = 3600
 
 FLAGS = flags.FLAGS