dae: update to 2.0.0

[Caij]

Package Details

Updates dae from 1.0.0 to 2.0.0 on the openwrt-25.12 branch.

This backports the version and source hash change already merged into master as 502338a0. The source archive requires Go 1.26, which is already the default Go version on openwrt-25.12.

Testing

• ImmortalWrt version: openwrt-25.12 (25.12.1)
• Target/subtarget: package metadata change; CI will cover supported architectures
• Device: not runtime-tested locally
• Independently downloaded the official v2.0.0 full-source archive and verified SHA-256: 89853731fbc6ca60e4a68644e774fa45927fc53e7c05b19b9308fc938b1b98c2
• Verified the diff matches the version/hash change already merged in master
• git diff --check passes

Formalities

• I have reviewed the CONTRIBUTING.md file.
• Commit includes a matching Signed-off-by line.

This PR does not add or modify downstream patches.