efuse: FPGA testing must be run only manually

components/efuse/test_apps/main/Kconfig.projbuild

@@ -3,7 +3,7 @@ menu "eFuse Tests"
 
     config EFUSE_FPGA_TEST
         bool "Enable eFuse tests for FPGA (developers only, will PERMANENTLY burn efuses)"
-        default y if IDF_ENV_FPGA
+        default n
         help
             This includes eFuse tests for FPGA. These tests expect actual eFuse burning.
             Disable EFUSE_VIRTUAL to use real eFuse burning.