[security] Bump aiohttp and starlette in FoundryAgentBasic playground

[IEvangelist]

Resolves the three open Dependabot alerts on playground/FoundryAgentBasic/app/uv.lock:

Alert	Severity	Advisory	Package	Summary
#1185	medium	GHSA-jg22-mg44-37j8 (CVE-2026-34993)	aiohttp	Deserialization of untrusted data
#1186	medium	GHSA-hg6j-4rv6-33pg (CVE-2026-47265)	aiohttp	Cross-origin redirect with per-request cookies
#1187	medium	GHSA-86qp-5c8j-p5mr	starlette	Missing Host header validation poisons request.url.path, bypassing path-based security checks

aiohttp and starlette are both transitive dependencies in this playground app (not declared in pyproject.toml), so only the lockfile changes.

Changes

• aiohttp 3.13.2 -> 3.14.0 (patched in 3.14.0)
• starlette 0.50.0 -> 1.2.1 (patched in 1.0.1; bumped to latest)

Generated with:

uv lock --upgrade-package aiohttp
uv lock --upgrade-package starlette

The resolver only updated the two named packages; no other versions changed.

Co-authored-by: Copilot 223556219+Copilot@users.noreply.github.com

[Copilot]

Copilot wasn't able to review any files in this pull request.

[github-actions]

🚀 Dogfood this PR with:

⚠️ WARNING: Do not do this without first carefully reviewing the code of this PR to satisfy yourself it is safe.

curl -fsSL https://raw.githubusercontent.com/microsoft/aspire/main/eng/scripts/get-aspire-cli-pr.sh | bash -s -- 17902

Or

• Run remotely in PowerShell:

iex "& { $(irm https://raw.githubusercontent.com/microsoft/aspire/main/eng/scripts/get-aspire-cli-pr.ps1) } 17902"

[github-actions]

Re-running the failed jobs in the CI workflow for this pull request because 1 job was identified as retry-safe transient failures in the CI run attempt.
GitHub was asked to rerun all failed jobs for that attempt, and the rerun is being tracked in the rerun attempt.
The job links below point to the failed attempt jobs that matched the retry-safe transient failure rules.

• Tests / Cli.EndToEnd-TypeScriptCodegenValidationTests / Cli.EndToEnd-TypeScriptCodegenValidationTests (ubuntu-latest) - Failed step 'Upload logs, and test results' matched the transient annotation allowlist.

[github-actions]

❌ CLI E2E Tests failed — 111 passed, 2 failed, 2 unknown (commit 8b0d522)

❌ Failed Tests

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❌	PersistentContainersPreserveDataAcrossAppHostRuns	Recording · Job · CLI logs
❌	RestoreGeneratesSdkFiles_WithConfiguredToolchain	Recording · Job · CLI logs

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_{📹 Recordings uploaded automatically from CI run #27011545687}

[adamint]

Reviewed the lockfile-only security bump with multiple passes and ran dependency resolution validation. I did not find any blocking issues.