chore(deps): update dependency @heroku/mcp-server to v1.1.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@heroku/mcp-server	1.0.7 -> 1.1.0

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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[github-actions]

🔒 MCP Security Scan Results

❌ heroku-mcp-server

• Status: Failed
• Tools scanned: 36
• Vulnerabilities found: 2

Security issues detected:

• [TF001] Data leak toxic flow detected. The same agent has access to at least one tool that produces untrusted content, one tool that can access private data, and one tool that can behave as a public sink. For more information, see https://explorer.invariantlabs.ai/docs/mcp-scan/issue-code-reference/#TF001
• [TF002] Destructive toxic flow detected. The same agent has access to at least one tool that produces untrusted content and one tool that can behave destructively. For more information, see https://explorer.invariantlabs.ai/docs/mcp-scan/issue-code-reference/#TF002

Allowed issues (not blocking):

• [W004] The MCP server is not in our registry. (Allowed: Server not in Invariant Labs registry - we verify provenance independently via our own checks.)

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Summary: Scanned 1 MCP server(s), found 2 security issue(s).

⚠️ Action Required: Security issues were detected. Please review and address them before merging.