Add OTA files from issue #45

OTA File Submission

File Information
- Filename: 1246-0100-00000120_a237fc.ota
- Original Filename: 1246-0100-01320132.0002_(56CF25B2).ota
- Manufacturer (user provided): Danfoss
- Manufacturer Directory: danfoss
- Manufacturer ID: 0x1246 (4678)
- Image Type: 0x0100 (256)
- File Version: 0x00000120 (288)
- File Size: 393,561 bytes
- Header String: Tue 06/03/2025 V.0120.0120
- Hosting: Repository file (hosted in zigpy-ota)
- Existing Images Handling: Keep all existing images
- Tested on Device: No

Metadata
- Source URL: https://github.com/user-attachments/files/26163878/1246-0100-01320132.0002_.56CF25B2.zip

Release Notes
New version

Closes: #45
Co-authored-by: rpce <159460568+rpce@users.noreply.github.com>

Author: zigpy-bot

images/danfoss/1246-0100-00000120_a237fc.ota

@@ -0,0 +1,6 @@
+# OTA metadata
+file_name: 1246-0100-00000120_a237fc.ota
+source_file_name: 1246-0100-01320132.0002_(56CF25B2).ota
+source_url: https://github.com/user-attachments/files/26163878/1246-0100-01320132.0002_.56CF25B2.zip
+release_notes: |-
+  New version