Upgrade trivy and harbor-scanner-trivy for harbor v2.11.1

[sp1999]

Issue #, if available:

#2401

Description of changes:

This PR does the following:

• Updates aquasecurity/trivy to v0.56.2 instead of harbor dependency v0.54.1 as the latest trivy version includes #7600 which fixes the go.mod dependencies to remove the broken replace directives
• Removes the 0001-Replace-mitchellh-os-ext-with-kardianos-os-ext-modul.patch from trivy as upstream removed the dependency on github.com/mitchellh/osext module in #7249 as part of v0.54.0 release
• Adds a new patch to replace trivy dependency using some non-standard public domain license and fix attribution generation error:

E1016 06:35:01.744101     246 library.go:132] Failed to find license for github.com/xi2/xz: cannot find a known open source license for "/eks-anywhere-build-tooling/projects/aquasecurity/trivy/trivy/vendor/github.com/xi2/xz" whose name matches regexp ^(?i)((UN)?LICEN(S|C)E|COPYING|README|NOTICE).*$ and locates up until "/eks-anywhere-build-tooling/projects/aquasecurity/trivy/trivy/vendor"
F1016 06:35:08.701095     246 main.go:77] one or more libraries have an incompatible/unknown license: map["unknown":["github.com/xi2/xz"]]

• Updates aquasecurity/harbor-scanner-trivy to v0.31.4

Upstream source of truth:

https://github.com/goharbor/harbor/blob/v2.11.1/Makefile#L107-L108

Changelog:

Trivy: https://github.com/aquasecurity/trivy/blob/main/CHANGELOG.md
Harbor-scanner-trivy: https://github.com/aquasecurity/harbor-scanner-trivy/releases/tag/v0.31.4

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[sp1999]

/approve

[eks-distro-bot]

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[abhay-krishna]

/lgtm