Update NuGet to use a unique version regex

🔍 What does this MR do?

Currently the NuGet package version uses the SemVer regex to validate the incoming version, however it has become apparent that many users expect the ability to use extended versions, such as 1.1.1.1, but SemVer does not allow for the third period. Note that while NuGet docs do say it follows semantic versioning, the docs also have examples using extended versions.

This MR updates the validation to use a regex that is specific to NuGet that allows for this additional version format.

Screenshots

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• [-] Tested in all supported browsers
• [-] Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• [-] Label as security and @ mention @gitlab-com/gl-security/appsec
• [-] The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• [-] Security reports checked/validated by a reviewer from the AppSec team

Related #217157 (closed)