feat(agent): add container list handler (#16346)

Fixes https://github.com/coder/coder/issues/16268

- Adds `/api/v2/workspaceagents/:id/containers` coderd endpoint that allows listing containers
visible to the agent. Optional filtering by labels is supported.
- Adds go tools to the `coder-dylib` CI step so we can generate mocks if needed

.github/workflows/ci.yaml

@@ -961,6 +961,15 @@ jobs:
       - name: Setup Go
         uses: ./.github/actions/setup-go
 
+      # Needed to build dylibs.
+      - name: go install tools
+        run: |
+          go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.30
+          go install storj.io/drpc/cmd/protoc-gen-go-drpc@v0.0.34
+          go install golang.org/x/tools/cmd/goimports@latest
+          go install github.com/mikefarah/yq/v4@v4.44.3
+          go install go.uber.org/mock/mockgen@v0.5.0
+
       - name: Install rcodesign
         if: ${{ github.repository_owner == 'coder' && github.ref == 'refs/heads/main' }}
         run: |