Clean environment build folder before Arduino build (#344)

Added cleanup of the environment build folder before the Arduino build process.

Author: Jason2866

builder/frameworks/espidf.py

@@ -2632,6 +2632,9 @@ def _replace_move(src, dst):
         shutil.copyfile(str(Path(env.subst("$PROJECT_DIR")) / ("sdkconfig." + env["PIOENV"])), str(Path(arduino_libs) / chip_variant / "sdkconfig"))
         shutil.copyfile(str(Path(env.subst("$PROJECT_DIR")) / ("sdkconfig." + env["PIOENV"])), str(Path(arduino_libs) / "sdkconfig"))
         try:
+            # clean env build folder to avoid issues with following Arduino build
+            shutil.rmtree(env_build)
+            Path(env_build).mkdir(parents=True, exist_ok=True)
             os.remove(str(Path(env.subst("$PROJECT_DIR")) / "dependencies.lock"))
             os.remove(str(Path(env.subst("$PROJECT_DIR")) / "CMakeLists.txt"))
         except FileNotFoundError: