[dependabot:update-planner] Dependency update task for github/gh-aw: close stale Dependabot PRs superseded by merged commit

[cao-githubnext-gh-aw-cao-write]

Five open Dependabot pull requests (#61090 golang.org/x/tools, #61091 mermaid, #61092 github.com/modelcontextprotocol/go-sdk, #61108 actions/download-artifact, #61109 actions/upload-pages-artifact) each propose a target version that is already present on main via merged commit 9894316e52719a5cd978241fbe4e17e716647b00 (PR #61774). Re-applying these branches would produce no meaningful diff or a merge conflict against current main.

Action: A repository maintainer with write access should verify and close each of these five pull requests as superseded. This is a human-only administrative action; it is not assigned to a coding agent.

Scope

• Confirm, for each of the five listed PRs, that the target dependency version is already present on main at the paths noted below.
• Close each confirmed-stale PR with a short comment referencing merged commit 9894316e52719a5cd978241fbe4e17e716647b00 as the reason.
• Do not merge any of these PRs.
• Do not change .github/dependabot.yml or any Dependabot repository-access setting as part of this action.

Acceptance checks

• go.mod on main shows golang.org/x/tools v0.50.0 (confirms Bump golang.org/x/tools from 0.49.0 to 0.50.0 #61090 is stale) and github.com/modelcontextprotocol/go-sdk v1.8.0 (confirms Bump github.com/modelcontextprotocol/go-sdk from 1.7.0 to 1.8.0 #61092 is stale).
• docs/package.json/docs/package-lock.json on main show mermaid resolved at 12.0.0 (confirms Bump mermaid from 11.17.2 to 12.0.0 in /docs #61091 is stale).
• .github/workflows/CWI.yml (or cgo.yml) on main shows actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 (confirms build(deps): Bump actions/download-artifact from 4.1.8 to 8.0.1 #61108 is stale).
• .github/workflows/docs.yml on main shows actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9 # v5.0.0 (confirms Bump actions/upload-pages-artifact from 3.0.1 to 5.0.0 #61109 is stale).
• All five PRs are closed (not merged) once confirmed, each with a comment naming the superseding commit.

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