dotnet on linux - Signing key on ... is not bound

dotnet on linux  gpg key not working....

Warning: https://packages.microsoft.com/ubuntu/25.04/prod/dists/plucky/InRelease: Policy will reject signature wi
thin a year, see --audit for details
Controle: https://packages.microsoft.com/ubuntu/25.04/prod/dists/plucky/InRelease: Sub-process /usr/bin/sqv returned a
n error code (1), error message is:
  Signing key on BC528686B50D79E339D3721CEB3E94ADBE1229CF is not bound:
             No binding signature at time 2025-09-12T15:59:00Z
    because: Policy rejected non-revocation signature (PositiveCertification) requiring second pre-image resistance
    because: SHA1 is not considered secure since 2026-02-01T00:00:00Z