Fix docker warnings in Puppeteer dockerfile

[buvinghausen]

Just fixing the LegacyKeyValueFormat warning messages by adding the equals signs to the two lines

Description

I'm in the process of building out a DI friendly client library for all the servers published to docker to use with the csharp-sdk and noticed the puppeteer image was reporting two warnings.

Server Details

• Server: puppeteer
• Changes to: Dockerfile

Motivation and Context

Simply fixing the warnings

How Has This Been Tested?

Tested on WSL2 running in Fedora via Docker Desktop on Windows

Breaking Changes

No

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Protocol Documentation
• My changes follows MCP security best practices
• I have updated the server's README accordingly
• I have tested this with an LLM client
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

N/A

[olaservo]

Thanks for fixing this!