Cleaned up first person warnings from Vale

doc/ci/examples/deployment/composer-npm-deploy.md

doc/development/code_review.md

doc/development/contributing/merge_request_workflow.md

doc/development/documentation/topic_types/concept.md

doc/development/fe_guide/style/scss.md

doc/development/fe_guide/troubleshooting.md

doc/development/multi_version_compatibility.md

doc/development/projections.md

doc/development/testing_guide/end_to_end/index.md

doc/development/testing_guide/frontend_testing.md

doc/development/uploads/working_with_uploads.md

...egration/advanced_search/elasticsearch_troubleshooting.md

doc/topics/authentication/index.md

doc/user/application_security/dependency_scanning/index.md

doc/user/application_security/index.md

doc/user/profile/active_sessions.md

doc/user/profile/index.md

doc/user/upgrade_email_bypass.md