tests/float: Make bytes/bytearray construct tests work with obj repr C.

2.5 can be represented correctly in object representation C, but 2.3 cannot
(it is slightly truncated).

Signed-off-by: Damien George <damien@micropython.org>

tests/float/bytearray_construct_endian.py

@@ -9,4 +9,4 @@ except ImportError:
         print("SKIP")
         raise SystemExit
 
-print(bytearray(array("f", [1, 2.3])))
+print(bytearray(array("f", [1, 2.5])))

tests/float/bytes_construct_endian.py

@@ -9,4 +9,4 @@ except ImportError:
         print("SKIP")
         raise SystemExit
 
-print(bytes(array("f", [1, 2.3])))
+print(bytes(array("f", [1, 2.5])))