deps: bump requests to 2.33.0 in mcp_server_vefaas_browser_use

[katsugtgz]

Updates requests from 2.32.3 to 2.33.0 in mcp/server/mcp_server_vefaas_browser_use/pyproject.toml.

Evidence:

• pyproject.toml pinned requests==2.32.3
• OSV reports GHSA-9hjg-9r4m-mvj7 (netrc credentials leak via malicious URLs) and PYSEC-2026-2275 against 2.32.3
• 2.32.4 still sits in range for GHSA-gc5v-m9x4-r6x2, so 2.33.0 is the lowest release clear of both advisories

Validation:

• requests@2.33.0 installs into a fresh Python 3.10 venv and imports
• the server module imports and its console entrypoint resolves with mcp<2 plus requests==2.33.0 (the current mcp>=1.6.0 floor resolves to 2.x where mcp.server.fastmcp no longer exists; that is pre-existing and unchanged by this bump)
• no test suite exists for this server

Scope: dependency bump only.