chore(deps): update aiomqtt requirement from >=1.2.0 to >=2.5.1

[dependabot]

Updates the requirements on aiomqtt to permit the latest version.

Release notes

Sourced from aiomqtt's releases.

v2.5.1

Fixed

• Fix failure to load TLS with tls_params and tls_insecure=True (@​okaresz in 386)

Changelog

Sourced from aiomqtt's changelog.

[2.5.1] - 2026-03-05

Fixed

• Fix failure to load TLS with tls_params and tls_insecure=True (@​okaresz in #386)

[2.5.0] - 2026-01-04

Fixed

• Fix the type hint for Message.payload from PayloadType to bytes (@​meronepy in #370)
• Let exceptions bubble up in Client.__aexit__ instead of suppressing them (@​yujia21 in #375)
• Load TLS certs from the executor thread (@​allenporter in #382)

[2.4.0] - 2025-05-03

Added

• Allow proxy_port to be passed to the underlying paho proxy_set() function (@​NickJHoffmann in #339)

Fixed

• Fix retained message delayed on TLS connection (@​wpickard in #343)

[2.3.2] - 2025-04-08

Added

• Test for Python 3.13 (@​empicano in #359)

Fixed

• Add missing version attributes after uv switch (@​empicano in #359)

[2.3.1] - 2025-03-31

Changed

• Switch from poetry to uv (@​pavel-anchev in #350)

Fixed

• Consistently use sock.fileno() to identify socket for monitoring (@​airtower-luna in #357)
• Replace deprecated get_event_loop with get_running_loop

[2.3.0] - 2024-08-07

Added

• Implement len(client.messages) to return number of messages in queue (@​empicano in #323)

... (truncated)

Commits

• c8f8248 docs: Update changelog for release
• 9b699be Fix tls_insecure_set init order, fixes #384.
• 4e0be01 build: Update lock file
• c00738b build: Bump version for release
• ca652b0 docs: Update changelog for release
• e08754a Add PR #382 to changelog
• 949052f Load TLS certs from the executor thread
• fa96b10 test: remove unnecessary test on aexit
• 48f900f feat: raise disconnect error from failure point #344
• 7e821fe build: Update ruff
• Additional commits viewable in compare view

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