feat: support etcd Add-on

[loomts]

resolve #427 #426

[ldming]

Should be merged after apecloud/kubeblocks-addons#927 merged.

[github-actions]

This PR is stale because it has been open 45 days with no activity. Remove stale label or comment

[wangyelei]

/cherry-pick release-1.0

[github-actions]

🤖 says: Error cherry-picking.

Failed to merge submodule addons (not checked out)
CONFLICT (submodule): Merge conflict in addons
warning: Cannot merge binary files: pkg/cluster/charts/elasticsearch.tgz (HEAD vs. c0c5768 (feat: support etcd Add-on (#425)))
Auto-merging pkg/cluster/charts/elasticsearch.tgz
CONFLICT (content): Merge conflict in pkg/cluster/charts/elasticsearch.tgz
warning: Cannot merge binary files: pkg/cluster/charts/kafka.tgz (HEAD vs. c0c5768 (feat: support etcd Add-on (#425)))
Auto-merging pkg/cluster/charts/kafka.tgz
CONFLICT (content): Merge conflict in pkg/cluster/charts/kafka.tgz
warning: Cannot merge binary files: pkg/cluster/charts/mongodb.tgz (HEAD vs. c0c5768 (feat: support etcd Add-on (#425)))
Auto-merging pkg/cluster/charts/mongodb.tgz
CONFLICT (content): Merge conflict in pkg/cluster/charts/mongodb.tgz
warning: Cannot merge binary files: pkg/cluster/charts/postgresql.tgz (HEAD vs. c0c5768 (feat: support etcd Add-on (#425)))
Auto-merging pkg/cluster/charts/postgresql.tgz
CONFLICT (content): Merge conflict in pkg/cluster/charts/postgresql.tgz
warning: Cannot merge binary files: pkg/cluster/charts/qdrant.tgz (HEAD vs. c0c5768 (feat: support etcd Add-on (#425)))hint: Recursive merging with submodules currently only supports trivial cases.
hint: Please manually handle the merging of each conflicted submodule.
hint: This can be accomplished with the following steps:
hint: - come back to superproject and run:
hint:
hint: git add addons
hint:
hint: to record the above merge or update
hint: - resolve any other conflicts in the superproject
hint: - commit the resulting index in the superproject
hint:
hint: Disable this message with "git config advice.submoduleMergeConflict false"

Auto-merging pkg/cluster/charts/qdrant.tgz
CONFLICT (content): Merge conflict in pkg/cluster/charts/qdrant.tgz
error: could not apply c0c5768... feat: support etcd Add-on (#425)
hint: After resolving the conflicts, mark them with
hint: "git add/rm ", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".
hint: Disable this message with "git config advice.mergeConflict false"

[github-actions]

🤖 says: ‼️ cherry pick action failed.
See: https://github.com/apecloud/kbcli/actions/runs/12002167530