Merge branch 'rahix/fstrings' into 'master'

pycardium: Enable f-strings

See merge request !506

pycardium/mpconfigport.h

@@ -53,6 +53,7 @@ int mp_hal_csprng_read_int(void);
 #define MICROPY_PY_IO_FILEIO                (1)
 #define MICROPY_PY_UERRNO                   (1)
 #define MICROPY_PY_FRAMEBUF                 (1)
+#define MICROPY_PY_FSTRINGS                 (1)
 #define MICROPY_PY_BLUETOOTH                (1)
 #define MICROPY_PY_BUILTINS_MEMORYVIEW      (1)
 #define MICROPY_PY_BLUETOOTH_ENABLE_CENTRAL_MODE (1)