Bump metasploit-credential to 6.0.24

[jheysel-r7]

Pulls in changes from: rapid7/metasploit-credential#199 which helps unblock the following: #20881

Testing

• CI tests pass

[jenkins-eks-metasploit]

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[jenkins-eks-metasploit]

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[jenkins-eks-metasploit]

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[jenkins-eks-metasploit]

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[smcintyre-r7]

I think the pro tests are failing because of an issue with the rack version. I see #21458 was merged, would you mind rebasing this PR to pull in the latest changes to see if that fixes it?

[jenkins-eks-metasploit]

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[jenkins-eks-metasploit]

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[jenkins-eks-metasploit]

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[smcintyre-r7]

Release Notes

This bumps the metasploit-credentials gem to address an issue in how Kerberos hashes were being handled.