Redefine the upper boundary for Edge Cluster and Edge Node ASN setting

[spacegospod]

Summary of Pull Request

The upper limit that the SDDC manager enforces on ASN values is 2^32 (4294967295). In our code this is evaluated by raising 2 to the power of 32 and trying to cast it into the default integer. On systems where Golang's integer defaults to 32-bit signed this cannot be enforced since it will overflow and actually produce a negative value.

Even if we change the validation util to work with int64 the input values would theoretically overflow since Terraform's integer inputs use the default int type.

Type of Pull Request

• [X] This is a bug fix.
• [ ] This is an enhancement or feature.
• [ ] This is a code style/formatting update.
• [ ] This is a documentation update.
• [ ] This is a refactoring update.
• [ ] This is a chore update
• [ ] This is something else. Please describe:

Related to Existing Issues

Closes #120

Test and Documentation Coverage

For bug fixes or features:

• [X] Tests have been completed.
• [ ] Documentation has been added/updated.

Breaking Changes?

• [ ] Yes, there are breaking changes.
• [X] No, there are no breaking changes.

[github-actions[bot]]

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