chore(release): add unreleased changelog entries

[natalie-o-perret]

Summary

Backfill the Unreleased block in CHANGELOG.md with natalie's PRs merged since v0.69.2 (2026-05-05) that were missing.

Related issue

None.

Changes

Add the following to the existing ## Unreleased block in CHANGELOG.md:

IMPROVEMENTS

• test: local-creds helper for acceptance runs test: local-creds helper for acceptance runs #545

BUG FIXES

• fix(compute_instance): suppress user_data diffs for pre-encoded input fix(compute_instance): suppress user_data diffs for pre-encoded input #518
• fix(security-group-rule): allow portless protocols (ESP, AH, GRE, IPIP) fix(security-group-rule): allow portless protocols (ESP, AH, GRE, IPIP) #531
• fix(template): fall back to private visibility when name lookup returns not found fix(template): fall back to private visibility when name lookup returns not found #532

FEATURES

• feat(dbaas): add exoscale_dbaas_valkey_user resource feat(dbaas): add exoscale_dbaas_valkey_user resource #528

Checklist

• Changelog updated (under Unreleased block)
• Acceptance tests OK (not applicable, docs only)

Notes for reviewers

Entries for other merged PRs since 0.69.2 (#533 by @imiric) are missing. Not added here per scope; left for the relevant author or release manager.

[imiric]

Thanks! Just some minor feedback, mostly to align on a single convention.

[natalie-o-perret]

Thanks! Just some minor feedback, mostly to align on a single convention.

So my stance (which isn't everybody's stance) we should include everything, ideally (I know, I like this word), in the future we could lean towards release-please, so that if forces folks (myself included) to have meaningful commits from which the rest is derived (fwiw, we can tweak the conv comm/lint/release-please, so that it doesn't bloat changelog with unnecessary details, like e.g., ci-centric contributions)

[imiric]

Thanks! 🙇