[DOCS-11412] Document subtest support for Synthetic Multistep API tes…

…ts (DataDog#30284)

* [DOCS-11412] Document subtest support to Synthetic Multistep API tests

* Minor syntax update

* Fix image width to match browser docs

* Update content/en/synthetics/multistep.md

Co-authored-by: domalessi <111786334+domalessi@users.noreply.github.com>

* Update content/en/synthetics/multistep.md

Co-authored-by: domalessi <111786334+domalessi@users.noreply.github.com>

* Update content/en/synthetics/multistep.md

Co-authored-by: domalessi <111786334+domalessi@users.noreply.github.com>

* Update content/en/synthetics/multistep.md

Co-authored-by: domalessi <111786334+domalessi@users.noreply.github.com>

* Update content/en/synthetics/multistep.md

Co-authored-by: domalessi <111786334+domalessi@users.noreply.github.com>

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Co-authored-by: domalessi <111786334+domalessi@users.noreply.github.com>

Remove outdated tracer configuration instructions. (DataDog#30293)

Add event correlation to unsupported sites (DataDog#30289)

* Add event correlation to unsupported sites

* Add clarifier to reduce future confusion

add link to gh integration (DataDog#30288)

Update API description and SDK dataset push (DataDog#30154)

* Update API description and SDK

* Capitalize boolean

* Capitalize boolean

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Co-authored-by: Bryce Eadie <bryce.eadie@datadoghq.com>

Clarify docs about RUM without Limits Retention Filters (DataDog#30221)

* clarify docs about rum retention filters

* fix typo

* Update content/en/real_user_monitoring/guide/retention_filter_best_practices.md

Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

* Update content/en/real_user_monitoring/rum_without_limits/retention_filters.md

Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

* Update content/en/real_user_monitoring/rum_without_limits/retention_filters.md

Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

* Update content/en/real_user_monitoring/rum_without_limits/retention_filters.md

Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

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Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

Fixing some missing environment variables from documentation (DataDog…

…#30283)

* Fixing some missing environment variables from documentation

* Update content/en/serverless/azure_app_services/azure_app_services_linux.md

Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

* Update content/en/serverless/azure_app_services/azure_app_services_linux.md

Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

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Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

Add blog links (DataDog#30285)

Add k8s and GCP recs to ccm recs docs (DataDog#30259)

* Add k8s and GCP recs to ccm recs docs

* CCR add documentation for 4 more GCP recommendations (DataDog#30260)

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Co-authored-by: Dave Handy <dave.handy@datadoghq.com>

fix(typo): remove double ^ (DataDog#30269)

Force merging due to simplicity of PR and branch naming.

Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>