move gain set into try - tested with simple example

Author: standsi

adafruit_veml7700.py

@@ -193,10 +193,11 @@ class VEML7700:
 
     def __init__(self, i2c_bus: I2C, address: int = 0x10) -> None:
         self.i2c_device = i2cdevice.I2CDevice(i2c_bus, address)
-        # Set lowest gain to keep from overflow on init if bright light
-        self.light_gain=self.ALS_GAIN_1_8
         for _ in range(3):
             try:
+                # Set lowest gain to keep from overflow on init if bright light
+                self.light_gain=self.ALS_GAIN_1_8
+                #
                 self.light_shutdown = False  # Enable the ambient light sensor
                 break
             except OSError: