do not error during bootstrap if license signature is valid but fields have changed in the wrapper

[laverya]

instead log the error, and continue startup using the signed contents

This prevented using SDK 1.12.0 with currently-released versions of kots

example logs:

% kubectl logs -n license-mangle replicated-6784c9bf8b-xcj69 -f
2025/12/02 22:52:16 Replicated version: alpha
2025/12/02 22:52:16 replicatedID: c81a6099-9033-404f-a11a-b1c2647540c5
2025/12/02 22:52:16 appID: c81a6099-9033-404f-a11a-b1c2647540c5
2025/12/02 22:52:16 license data validation failed: endpoint field has changed to "originalval-mod3" (license) from "originalval" (within signature)
2025/12/02 22:52:17 Starting monitor loop
...

Despite the log line, data is still reported correctly, showing that the signed value was used.

What does this PR do?

Does this PR introduce a user-facing change?

Fix incompatibility with currently-released versions of Kots introduced in 1.12.0