feat: add CreateRepositoryTag endpoint

[jvallesm]

Because

• Distribution registry doesn't hold digest or timestamp info for tags

This commit

• Implements the tag creation endpoint in artifact-backend, which will be used by api-gateway when it detects an image push has finished successfully.

[linear]

INS-3993 Add CreateRepositoryTag endpoint

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.05%. Comparing base (6cc2d8d) to head (a6bb41d).

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #8      +/-   ##
==========================================
+ Coverage   94.44%   96.05%   +1.60%     
==========================================
  Files           1        2       +1     
  Lines          54       76      +22     
==========================================
+ Hits           51       73      +22     
  Misses          2        2              
  Partials        1        1              

Flag	Coverage Δ
unittests	96.05% <100.00%> (+1.60%)	⬆️

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[jvallesm]

QA ✅

• Update an existing tag -> modifies digest and timestamp

grpcurl -plaintext \
-proto ./artifact/artifact/v1alpha/artifact_private_service.proto \
-import-path ~/Code/go/src/github.com/instill-ai/pipeline-backend/integration-test/proto/vdp/pipeline/v1beta/ \
-import-path . \
-d '{"tag":{"name": "repositories/admin/hello-world/tags/latest", "id":"latest", "digest":"bar"}}' \
localhost:8085 artifact.artifact.v1alpha.ArtifactPrivateService/CreateRepositoryTag | jq
{
  "tag": {
    "name": "repositories/admin/hello-world/tags/latest",
    "id": "latest",
    "digest": "bar",
    "updateTime": "2024-03-27T12:39:05.749116180Z"
  }
}

• Create a new tag

grpcurl -plaintext \
-proto ./artifact/artifact/v1alpha/artifact_private_service.proto \
-import-path ~/Code/go/src/github.com/instill-ai/pipeline-backend/integration-test/proto/vdp/pipeline/v1beta/ \
-import-path . \
-d '{"tag":{"name": "repositories/admin/hello-world/tags/1.0.14", "id":"1.0.14", "digest":"zot"}}' \
localhost:8085 artifact.artifact.v1alpha.ArtifactPrivateService/CreateRepositoryTag | jq
{
  "tag": {
    "name": "repositories/admin/hello-world/tags/1.0.14",
    "id": "1.0.14",
    "digest": "zot",
    "updateTime": "2024-03-27T12:39:49.198180839Z"
  }
}

• List tags shows created info

grpcurl -plaintext \
-proto ./artifact/artifact/v1alpha/artifact_private_service.proto \
-import-path ~/Code/go/src/github.com/instill-ai/pipeline-backend/integration-test/proto/vdp/pipeline/v1beta/ \
-import-path . \
-d '{"parent": "repositories/admin/hello-world"}' \
localhost:8085 artifact.artifact.v1alpha.ArtifactPrivateService/ListRepositoryTags | jq
{
  "tags": [
    {
      "name": "repositories/admin/hello-world/tags/0.1.1-beta",
      "id": "0.1.1-beta"
    },
    {
      "name": "repositories/admin/hello-world/tags/0.1.0",
      "id": "0.1.0"
    },
    {
      "name": "repositories/admin/hello-world/tags/1.0.1",
      "id": "1.0.1"
    },
    {
      "name": "repositories/admin/hello-world/tags/0.1.3",
      "id": "0.1.3"
    },
    {
      "name": "repositories/admin/hello-world/tags/0.1.1",
      "id": "0.1.1"
    },
    {
      "name": "repositories/admin/hello-world/tags/0.1.4",
      "id": "0.1.4"
    },
    {
      "name": "repositories/admin/hello-world/tags/1.0.12",
      "id": "1.0.12"
    },
    {
      "name": "repositories/admin/hello-world/tags/1.0.14",
      "id": "1.0.14",
      "digest": "zot",
      "updateTime": "2024-03-27T12:39:49.198180Z"
    },
    {
      "name": "repositories/admin/hello-world/tags/latest",
      "id": "latest",
      "digest": "bar",
      "updateTime": "2024-03-27T08:22:14.728862Z"
    }
  ]
}