:bug: Broken links detected on fixed.docs.upsun.com

[github-actions]

Broken Link	Parent	Line in Parent	Reason
https://www.w3.org/International/articles/http-charset/index.en	https://fixed.docs.upsun.com/create-apps/web/custom-headers.html	12806	403 Forbidden
https://developer.upsun.com/old/posts/ready-to-have-fun-try-kotlin-and-spring	https://fixed.docs.upsun.com/languages/java.html	12943	404 Not Found
https://nix.dev	https://fixed.docs.upsun.com/create-apps/app-reference/composable-image.html	12726	ConnectionError: HTTPSConnectionPool(host='nix.dev', port=443): Max retries exceeded with url: / (Caused by NewConnectionError("HTTPSConnection(host='nix.dev', port=443): Failed to establish a new connection: [Errno 101] Network is unreacha...
https://search.nixos.org/packages	https://fixed.docs.upsun.com/create-apps/app-reference/composable-image.html	12729	ConnectionError: HTTPSConnectionPool(host='search.nixos.org', port=443): Max retries exceeded with url: /packages (Caused by NewConnectionError("HTTPSConnection(host='search.nixos.org', port=443): Failed to establish a new connection: [Errn...
https://www.uvicorn.org/#running-with-gunicorn	https://fixed.docs.upsun.com/languages/python/server.html	13057	ConnectionError: HTTPSConnectionPool(host='www.uvicorn.org', port=443): Max retries exceeded with url: / (Caused by NameResolutionError("HTTPSConnection(host='www.uvicorn.org', port=443): Failed to resolve 'www.uvicorn.org' ([Errno -3] Temp...
https://www.uvicorn.org/settings/#timeouts	https://fixed.docs.upsun.com/languages/python/server.html	13759	ConnectionError: HTTPSConnectionPool(host='www.uvicorn.org', port=443): Max retries exceeded with url: /settings/ (Caused by NameResolutionError("HTTPSConnection(host='www.uvicorn.org', port=443): Failed to resolve 'www.uvicorn.org' ([Errno...
https://developer.upsun.com/old/posts/platformsh-is-now-using-annual-carbon-intensities-from-electricity-maps	https://fixed.docs.upsun.com/development/regions.html	12734	404 Not Found
https://docs.docksal.io/getting-started/setup/#system-requirements	https://fixed.docs.upsun.com/development/local/docksal.html	12729	ConnectionError: HTTPSConnectionPool(host='docs.docksal.io', port=443): Max retries exceeded with url: /getting-started/setup/ (Caused by NewConnectionError("HTTPSConnection(host='docs.docksal.io', port=443): Failed to establish a new conne...
https://docksal.io	https://fixed.docs.upsun.com/development/local/docksal.html	12722	ConnectionError: HTTPSConnectionPool(host='docksal.io', port=443): Max retries exceeded with url: / (Caused by NewConnectionError("HTTPSConnection(host='docksal.io', port=443): Failed to establish a new connection: [Errno 101] Network is un...
https://docs.newrelic.com/docs/apis/intro-apis/new-relic-api-keys/#license-key	https://fixed.docs.upsun.com/increase-observability/logs/forward-logs.html	12786	ConnectionError: HTTPSConnectionPool(host='docs.newrelic.com', port=443): Max retries exceeded with url: /docs/apis/intro-apis/new-relic-api-keys/ (Caused by NewConnectionError("HTTPSConnection(host='docs.newrelic.com', port=443): Failed to...
https://docs.newrelic.com/docs/release-notes/agent-release-notes/java-release-notes/index	https://fixed.docs.upsun.com/increase-observability/integrate-observability/new-relic/java.html	12830	ConnectionError: HTTPSConnectionPool(host='docs.newrelic.com', port=443): Max retries exceeded with url: /docs/release-notes/agent-release-notes/java-release-notes/index (Caused by NewConnectionError("HTTPSConnection(host='docs.newrelic.com...
https://docs.newrelic.com/docs/apm/agents/php-agent/configuration/php-agent-configuration/#inivar-distributed-enabled	https://fixed.docs.upsun.com/increase-observability/integrate-observability/new-relic/php.html	12859	ConnectionError: HTTPSConnectionPool(host='docs.newrelic.com', port=443): Max retries exceeded with url: /docs/apm/agents/php-agent/configuration/php-agent-configuration/ (Caused by NewConnectionError("HTTPSConnection(host='docs.newrelic.co...