Update CreateDeployment RPC to handle create in chain deployment

[khanhtc1202]

What this PR does / why we need it:

For deployment which be created to sync application in chain, we should add the ref to it in the chain model it belongs to, otherwise is keep as is for standalone deployment (deployment that does not belong to any chain called standalone deployment)

Which issue(s) this PR fixes:

Follow PR #2815

Does this PR introduce a user-facing change?:

NONE

[pipecd-bot]

Unabled to get changed files of pull request.

Details

Error: rpc error: code = NotFound desc = not found

[pipecd-bot]

Code coverage for golang is 31.81%. This pull request decreases coverage by -0.03%.

File	Function	Base	Head	Diff
pkg/datastore/deploymentchainstore.go	deploymentChainStore.UpdateDeploymentChain	--	0.00%	+0.00%
pkg/app/api/grpcapi/piped_api.go	PipedAPI.CreateDeployment	0.00%	0.00%	+0.00%
pkg/app/piped/trigger/trigger.go	Trigger.checkRepoCandidates	0.00%	0.00%	+0.00%

[pipecd-bot]

Code coverage for golang is 31.81%. This pull request decreases coverage by -0.03%.

File	Function	Base	Head	Diff
pkg/datastore/deploymentchainstore.go	deploymentChainStore.UpdateDeploymentChain	--	0.00%	+0.00%
pkg/app/api/grpcapi/piped_api.go	PipedAPI.CreateDeployment	0.00%	0.00%	+0.00%
pkg/app/piped/trigger/trigger.go	Trigger.checkRepoCandidates	0.00%	0.00%	+0.00%

[pipecd-bot]

Code coverage for javascript is 84.24%. This pull request does not change code coverage.

[nakabonne]

found typo in PR title: Update CreateDeployment RCP -> Update CreateDeployment RPC

[nakabonne]

makes sense
/lgtm

[nghialv]

/approve

[pipecd-bot]

This pull request is APPROVED by nghialv.

Approvers can cancel the approval by writing /approve cancel in a comment. Any additional commits also will change this pull request to be not-approved.