fix(deps): update rust crate cegla-scgi to 0.2.0 (develop-2.x-lts)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
cegla-scgi	dependencies	minor	0.1.2 → 0.2.0

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Release Notes

ferronweb/cegla (cegla-scgi)

v0.2.3

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• Fixed EOF not being sent for error stream when the client receives FastCGI END_REQUEST record.
• Improved the handling of closed FastCGI client connections (closed by the server).

v0.2.2

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• Added a function for checking if FastCGI connection is closed in SendRequest.

v0.2.1

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• Added vibeio-cegla (support for vibeio async runtime)
• Added cegla-fcgi (a high-level FastCGI implementation for Rust)

v0.2.0

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• Added cwd argument to start_child function of Runtime trait in cegla-cgi
• The CONTENT_LENGTH CGI variable is now overridden if it's present before building a CgiEnvironment
• Improved HTTP header environment variable handling consistency between client-side and server-side implementations

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