NuGet - Allow to set allowInsecureConnections package source attribute

[EyalDelarea]

• All tests have passed. If this feature is not already covered by the tests, new tests have been added.
• The pull request is targeting the dev branch.
• The code has been validated to compile successfully by running go vet ./....
• The code has been formatted properly using go fmt ./....

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Allows the user to set allowInsecureConnections in NuGet config file.

  <packageSources>
    <add key="JFrogCli" value="%s" protocolVersion="%s" **allowInsecureConnections**="%v"/>
  </packageSources>

The latest .NET 6 release introduces changes to NuGet that now restrict the use of insecure connections for package sources unless a specific flag is enabled.

This update resolves the failing tests by adding the required flag for cases where it is necessary. This flag is primarily intended for testing purposes to allow use with local sources and should not be enabled in production environments.

Dependencies

This PR depends on the following PRs:

• jfrog/build-info-go#283: Update build-info dependencies
• jfrog/jfrog-cli-core#1302: Add CLI core functionality for extended commands