Bump nokogiri from 1.16.7 to 1.18.3 in the bundler group

Update 11-setting_expectations.md

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Update 00-what_is_google_summer_of_code.md

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periodic dependency update

bundle update

periodic package updates

bundle update

Periodic dependency update.

periodic dependency update

docs: Fix Markdown Lint Errors in Communication Best Practices Guide (#123)

Update 11-communication_best_practices.md

periodic dependency update