docs(bitbucket-pipelines): authenticated registries

[setchy]

Changes

Add documentation for

• authenticated registry support
• migrating from unauthenticated to authenticated registry formats

Context

Publishing examples from these two sources

• Support private Docker registries in bitbucket-pipelines.yml  #13555 (comment)
• Help with regex manager + autoReplaceStringTemplates #21094 (comment)

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

[viceice]

we should extend manager support instead

[setchy]

we should extend manager support instead

Agree, and there is an open issue to track that.

But until then, why not improve the docs? Can easily remove the regexs manager examples if and when the bitbucket-pipelines manager parses the yml, which would only improve authenticated image handling, I cannot see it supporting moving from unauthenticated to authenticated image structures

[setchy]

we should extend manager support instead

#21107 - updated bitbucket-pipelines manager extract logic.

Note: I have not attempted to parse the yaml as suggested by @viceice here - so ordering is important (but also incredibly common).

[setchy]

Moving to draft until feedback re: #21107

[HonkingGoose]

Suggested change

	More details can be found on the Atlassian [Bitbucket Pipeline documentation](https://support.atlassian.com/bitbucket-cloud/docs/use-docker-images-as-build-environments) site
	More details can be found on the Atlassian [Bitbucket Pipeline documentation](https://support.atlassian.com/bitbucket-cloud/docs/use-docker-images-as-build-environments) site.

[setchy]

Thanks @HonkingGoose

I'll be updating this PR one @viceice can land #21102

[renovate-release]

🎉 This issue has been resolved in version 35.25.0 🎉

The release is available on:

• GitHub release
• 35.25.0

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