Fixed integration test failure:

<<< Run completed (err = <nil>)
    environment.go:52:
        	Error Trace:	D:/a/arduino-cli/arduino-cli/internal/integrationtest/environment.go:52
            			D:/a/arduino-cli/arduino-cli/internal/integrationtest/environment.go:63
        	            	D:/a/arduino-cli/arduino-cli/internal/integrationtest/environment.go:63
        	            	D:/a/arduino-cli/arduino-cli/internal/integrationtest/environment.go:69
        	            	D:/a/arduino-cli/arduino-cli/internal/integrationtest/board/board_test.go:638
        	Error:      	Received unexpected error:
        	            	remove C:\Users\runneradmin\AppData\Local\Temp\cli2634248494\A\inventory.yaml: The process cannot access the file because it is being used by another process.
        	Test:       	TestCLIStartupWithCorruptedInventory
--- FAIL: TestCLIStartupWithCorruptedInventory (8.45s)

Author: cmaglie

internal/integrationtest/board/board_test.go

@@ -630,6 +630,7 @@ func TestCLIStartupWithCorruptedInventory(t *testing.T) {
 	require.NoError(t, err)
 	_, err = f.WriteString(`data: '[{"name":"WCH;32?'","fqbn":"esp32:esp32:esp32s3camlcd"}]'`)
 	require.NoError(t, err)
+	require.NoError(t, f.Close())
 
 	// the CLI should not be able to load inventory and report it to the logs
 	_, stderr, err := cli.Run("core", "update-index", "-v")