Adding support for checking URL with protocol='bundleresource' existence

[asaelitz]

Pull Request Checklist

• Have you read How to write the perfect pull request?
• Have you read through the contributor guidelines?
• Have you signed the Lightbend CLA?
• Have you referenced any issues you're fixing using commit message keywords?
• Have you added copyright headers to new files?
• Have you checked that both Scala and Java APIs are updated?
• Have you updated the documentation for both Scala and Java sections?
• Have you added tests for any changed functionality?

Helpful things

Fixes

Fixes #xxxx

Purpose

What does this PR do?

Background Context

Why did you take this approach?

References

Are there any relevant issues / PRs / mailing lists discussions?

[lightbend-cla-validator]

Hi @asaelitz,

Thank you for your contribution! We really value the time you've taken to put this together.

Before we proceed with reviewing this pull request, please sign the Lightbend Contributors License Agreement:

https://www.lightbend.com/contribute/cla

[mkurz]

LGTM

[mkurz]

@Mergifyio backport 2.8.x

[mergify]

backport 2.8.x

❌ No backport have been created

• Backport to branch 2.8.x failed: Git reported the following error:

fatal: couldn't find remote ref master