Add Aeotec Pico Shutter v1.0.8 (#6)

* Add OTA files from issue #5

OTA File Submission

File Information
- Filename: 1310-7C04-00000108_6d687b.ota
- Original Filename: Pico_Shutter_V1.0.8.ota
- Manufacturer (user provided): Aeotec
- Manufacturer Directory: aeotec
- Manufacturer ID: 0x1310 (4880)
- Image Type: 0x7C04 (31748)
- File Version: 0x00000108 (264)
- File Size: 326,978 bytes
- Header String: EBL PicoMotor
- Hosting: Repository file (hosted in zigpy-ota)
- Existing Images Handling: Keep all existing images
- Tested on Device: Yes

Metadata
- Source URL: https://raw.githubusercontent.com/Aeotec-ccheng/aeotecZigbeeProducts/main/ZigbeeOTAUpdates/Pico_Shutter_V1.0.8.ota

Release Notes
- Changed the Scene ID configuration for external switch S1/S2

Closes: #5
Co-authored-by: Aeotec-ccheng <63321041+Aeotec-ccheng@users.noreply.github.com>

* Add PR number to YAML metadata

---------

Co-authored-by: Aeotec-ccheng <63321041+Aeotec-ccheng@users.noreply.github.com>

Author: zigpy-bot

images/aeotec/1310-7C04-00000108_6d687b.ota

@@ -0,0 +1,7 @@
+# OTA metadata
+file_name: 1310-7C04-00000108_6d687b.ota
+source_file_name: Pico_Shutter_V1.0.8.ota
+source_url: https://raw.githubusercontent.com/Aeotec-ccheng/aeotecZigbeeProducts/main/ZigbeeOTAUpdates/Pico_Shutter_V1.0.8.ota
+pull_request: 6
+release_notes: |-
+  - Changed the Scene ID configuration for external switch S1/S2