Update template licenses to MIT.

Author: kattni

Adafruit_QT_Py_ESP32-S2/Analog_In/code.py

@@ -1,5 +1,5 @@
 # SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
-# SPDX-License-Identifier: Unlicense
+# SPDX-License-Identifier: MIT
 """
 CircuitPython analog voltage value example
 """

Adafruit_QT_Py_ESP32-S2/Capacitive_Touch_One_Pin/code.py

@@ -1,5 +1,5 @@
 # SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
-# SPDX-License-Identifier: Unlicense
+# SPDX-License-Identifier: MIT
 """
 CircuitPython Capacitive Touch Pin Example - Print to the serial console when one pin is touched.
 """

Adafruit_QT_Py_ESP32-S2/Digital_Input/code.py

@@ -1,5 +1,5 @@
 # SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
-# SPDX-License-Identifier: Unlicense
+# SPDX-License-Identifier: MIT
 """
 CircuitPython Digital Input example - Blinking a built-in NeoPixel LED using a button switch.
 """

Adafruit_QT_Py_ESP32-S2/Storage/boot.py

@@ -1,5 +1,5 @@
 # SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
-# SPDX-License-Identifier: Unlicense
+# SPDX-License-Identifier: MIT
 """
 CircuitPython Essentials Storage CP Filesystem boot.py file
 """

Adafruit_QT_Py_ESP32-S2/Storage/code.py

@@ -1,5 +1,5 @@
 # SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
-# SPDX-License-Identifier: Unlicense
+# SPDX-License-Identifier: MIT
 """
 CircuitPython Essentials Storage CP Filesystem code.py file
 """