Bump pyvlx to 0.2.18

[sbyx]

Proposed change

This updates pyvlx library used by velux integration to 0.2.18 fixing issue with timeouts when connecting to the Velux KLF-200.

pyvlx was supposedly updated to 0.2.17 with #40182 however the 0.2.17 version available using pip was actually not the intended 0.2.17 release of pyvlx as indicated here: Julius2342/pyvlx#54
The author has therefore released 0.2.18 which addresses this.

https://github.com/Julius2342/pyvlx/releases/tag/0.2.18

Julius2342/pyvlx@0.2.17...0.2.18

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR partially addresses SSL handshake error in Velux component #34844

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[probot-home-assistant]

Hey there @Julius2342, mind taking a look at this pull request as its been labeled with an integration (velux) you are listed as a codeowner for? Thanks!
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[epenet]

Ref #42773

[MartinHjelmare]

Thanks!

I've added links to the release and compare range for the version bump in the PR description.