Update CHANGELOG.md for 12.9.0

[ci skip]

Update CHANGELOG.md for 12.9.0
1e307fd9 · GitLab Release Tools Bot · 4c1db640 · 4c1db640 · 4c1db640 · 4c1db640
Commit 1e307fd9 authored 4 years ago by GitLab Release Tools Bot
--- a/changelogs/unreleased/use-default-crossplane-stack-versions.yml
+++ b/changelogs/unreleased/use-default-crossplane-stack-versions.yml
--- a/changelogs/unreleased/use_replicate_repo_for_repo_move.yml
+++ b/changelogs/unreleased/use_replicate_repo_for_repo_move.yml
--- a/changelogs/unreleased/validate-subnets-field.yml
+++ b/changelogs/unreleased/validate-subnets-field.yml
--- a/changelogs/unreleased/validate_service_project_id_nil_if_template.yml
+++ b/changelogs/unreleased/validate_service_project_id_nil_if_template.yml
--- a/changelogs/unreleased/vh-snippets-content-types.yml
+++ b/changelogs/unreleased/vh-snippets-content-types.yml
--- a/changelogs/unreleased/vh-snippets-finder-tweak.yml
+++ b/changelogs/unreleased/vh-snippets-finder-tweak.yml