[ImgBot] Optimize images

*Total -- 6,177.50kb -> 5,174.79kb (16.23%)

/app/assets/images/pipelines/conditionals/conditionals.png -- 63.46kb -> 45.04kb (29.03%)
/app/assets/images/pipelines/defining_steps/job-states.png -- 350.19kb -> 259.23kb (25.98%)
/app/assets/images/pipelines/build_retention/build-retention-flow-chart.png -- 146.80kb -> 110.33kb (24.84%)
/app/assets/images/pipelines/build_exports/build-exports-flow-chart.png -- 269.67kb -> 203.52kb (24.53%)
/images/docs/pipelines/build_exports/build-exports-flow-chart.png -- 269.67kb -> 203.52kb (24.53%)
/app/assets/images/pipelines/defining_steps/build-states.png -- 218.44kb -> 165.91kb (24.05%)
/images/docs/apis/managing_api_tokens/token-view.png -- 111.47kb -> 86.01kb (22.84%)
/app/assets/images/apis/managing_api_tokens/token-view.png -- 111.47kb -> 86.01kb (22.84%)
/images/docs/clusters/queue_metrics/cluster-queue-metrics.png -- 44.39kb -> 35.37kb (20.31%)
/app/assets/images/pipelines/architecture/buildkite-hybrid-architecture.png -- 281.04kb -> 226.43kb (19.43%)
/images/docs/agent/v3/buildkite-hybrid-architecture.png -- 281.04kb -> 226.43kb (19.43%)
/images/docs/pipelines/migrate_from_jenkins/buildkite-hybrid-architecture.png -- 281.04kb -> 226.43kb (19.43%)
/app/assets/images/agent/v3/buildkite-hybrid-architecture.png -- 281.04kb -> 226.43kb (19.43%)
/app/assets/images/pipelines/migrate_from_jenkins/buildkite-hybrid-architecture.png -- 281.04kb -> 226.43kb (19.43%)
/images/docs/tutorials/getting_started/getting-started-first-build.png -- 93.73kb -> 77.43kb (17.39%)
/app/assets/images/tutorials/getting_started/getting-started-first-build.png -- 93.73kb -> 77.43kb (17.39%)
/app/assets/images/agent/v3/elastic_ci_aws/elastic_ci_stack_overview/buildkite-elastic-ci-stack-on-aws-architecture.png -- 354.03kb -> 296.52kb (16.24%)
/images/docs/pipelines/security_overview/data-flow.png -- 138.93kb -> 117.33kb (15.55%)
/app/assets/images/pipelines/security_overview/data-flow.png -- 138.93kb -> 117.33kb (15.55%)
/app/assets/images/clusters/queue_metrics/cluster-queue-metrics-agent-utilization.png -- 29.80kb -> 25.27kb (15.22%)
/app/assets/images/agent/v3/monitoring/status-page.png -- 100.06kb -> 85.41kb (14.65%)
/images/docs/agent/v3/monitoring/status-page.png -- 100.06kb -> 85.41kb (14.65%)
/images/docs/pipelines/block_step/unblock_button.png -- 265.49kb -> 237.26kb (10.64%)
/app/assets/images/pipelines/block_step/unblock_button.png -- 265.49kb -> 237.26kb (10.64%)
/app/assets/images/pipelines/block_step/confirm_modal.png -- 245.97kb -> 225.53kb (8.31%)
/images/docs/pipelines/block_step/confirm_modal.png -- 245.97kb -> 225.53kb (8.31%)
/images/docs/tutorials/getting_started/getting-started-log-output.png -- 829.04kb -> 764.40kb (7.8%)
/images/docs/pipelines/block_step/release_modal_input.png -- 142.74kb -> 137.78kb (3.48%)
/app/assets/images/pipelines/block_step/release_modal_input.png -- 142.74kb -> 137.78kb (3.48%)

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