LogoutTokenClaimsSet must support the required "exp" claim

[Yavor Vasilev]

https://openid.net/specs/openid-connect-backchannel-1_0.html#LogoutToken

The current implementation seems to be based on draft 07.

[Yavor Vasilev]

Done: 54428fd4aa24ee06f1b2cfd832417c55227dd13f

version 11.12 (2024-05-17)
    * Moves the getExpirationTime method from IDTokenClaimsSet to
      CommonOIDCTokenClaimsSet.
    * LogoutTokenClaimsSet and LogoutTokenValidator must support the required
      "exp" claim (iss #469).
    * Adds new LogoutTokenClaimsSet constructor that includes an "exp" claim
      argument.
    * Deprecates the LogoutTokenClaimsSet constructor that doesn't include the
      "exp" claim argument.

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