fix(terragunt): ignore port when creating registry urls

[lstoeferle]

Changes

This PR fixes a small edge-case for the terragrunt manager, where the registryUrl should ignore the port defined in the terragrunt file.

Example:

terraform {
  source = "git::ssh://gitlab.example.com:1234/hashicorp/example?ref=v1.0.0"
}

Currently results in

{
  "registryUrls": ["https://gitlab.example.com:1234"]
}

but should result into

{
  "registryUrls": ["https://gitlab.example.com"]
}

Context

Forward fix for #28075

Documentation (please check one with an [x])

• I have updated the documentation, or
• No documentation update is required

How I've tested my work (please select one)

I have verified these changes via:

• Code inspection only, or
• Newly added/modified unit tests, or
• No unit tests but ran on a real repository, or
• Both unit tests + ran on a real repository

[renovate-release]

🎉 This PR is included in version 37.325.1 🎉

The release is available on:

• GitHub release
• npm package (@latest dist-tag)
• 37.325.1

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