feat(container): update image ghcr.io/tarampampam/error-pages to v2.20.0

[renovate]

This PR contains the following updates:

Package	Update	Change
ghcr.io/tarampampam/error-pages	minor	2.19.0 -> 2.20.0

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Release Notes

tarampampam/error-pages

v2.20.0

Compare Source

Changed

• version subcommand replaced by --version flag #​163
• --config-file flag is not global anymore (use error-pages (serve|build) --config-file ... instead of error-pages --config-file ... (serve|build) ...) #​163
• Flags --verbose, --debug and --log-json are deprecated, use --log-level and --log-format instead #​163

Added

• Possibility to use custom env variables in templates #​164, #​165

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