Add Sonoff SNZB-01M v1.1.0 (#51)

* Add OTA files from issue #50

OTA File Submission

File Information
- Filename: 1286-080E-00001100_a91db8.ota
- Original Filename: snzb-01m_v1.1.0.ota
- Manufacturer (user provided): Sonoff
- Manufacturer Directory: sonoff
- Manufacturer ID: 0x1286 (4742)
- Image Type: 0x080E (2062)
- File Version: 0x00001100 (4352)
- File Size: 193,632 bytes
- Header String: FIRMWARE
- Hosting: Repository file (hosted in zigpy-ota)
- Existing Images Handling: Keep all existing images
- Tested on Device: No

Metadata
- Manufacturer Names: SONOFF
- Model Names: SNZB-01M
- Source URL: https://github.com/user-attachments/files/26337939/snzb-01m_v1.1.0.ota.zip

Release Notes
This updates the Sonoff SNZB-01M Smart Scene Button to firmware version 1.1.0.

Changes
- Improved binding functionality: each button now supports both on/off control and brightness adjustment
  - This is enabled by adding the OnOff cluster to endpoints 2, 3, and 4 (previously only available on endpoint 1)
- Performance improvements

Closes: #50
Co-authored-by: West Zhao <55424074+Oniums@users.noreply.github.com>

* Add PR number to YAML metadata

---------

Co-authored-by: West Zhao <55424074+Oniums@users.noreply.github.com>

Author: zigpy-bot

images/sonoff/1286-080E-00001100_a91db8.ota

@@ -0,0 +1,16 @@
+# OTA metadata
+file_name: 1286-080E-00001100_a91db8.ota
+source_file_name: snzb-01m_v1.1.0.ota
+source_url: https://github.com/user-attachments/files/26337939/snzb-01m_v1.1.0.ota.zip
+pull_request: 51
+release_notes: |-
+  This updates the Sonoff SNZB-01M Smart Scene Button to firmware version 1.1.0.
+
+  **Changes**
+  - Improved binding functionality: each button now supports both on/off control and brightness adjustment
+    - This is enabled by adding the `OnOff` cluster to endpoints 2, 3, and 4 (previously only available on endpoint 1)
+  - Performance improvements
+manufacturer_names:
+  - SONOFF
+model_names:
+  - SNZB-01M