[Sync EN] Remove $ sigil from <parameter> names

[github-actions]

PR: https://github.com/php/doc-en/pull/5643 (2026-07-01)

Файлы RU для обновления

• appendices/migration83/deprecated.xml
• appendices/migration83/incompatible.xml
• appendices/migration83/new-features.xml
• appendices/migration83/other-changes.xml
• appendices/migration85/deprecated.xml
• appendices/migration85/incompatible.xml
• appendices/migration85/new-features.xml
• appendices/migration85/other-changes.xml
• appendices/migration85/windows-support.xml
• reference/com/functions/variant-cat.xml
• reference/datetime/datetime/construct.xml
• reference/datetime/datetimeimmutable/construct.xml
• reference/mongodb/tutorial/apm.xml
• reference/pcre/functions/preg-match-all.xml
• reference/pcre/functions/preg-match.xml
• reference/session/examples.xml
• reference/session/functions/session-decode.xml
• reference/session/sessionhandler/destroy.xml
• reference/session/sessionhandler/read.xml
• reference/session/sessionhandler/write.xml
• reference/stream/constants.xml
• reference/yac/yac/dump.xml