loadExternalScript activity controls (#5643)

* loadExternalScript activity controls

* change file

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Co-authored-by: Marcin Komorski <marcinkomorski@Marcins-MacBook-Pro.local>

dev-docs/activity-controls.md

@@ -120,6 +120,7 @@ Here's the list of the 'potentially restricted activities' that Prebid.js core c
 | `transmitPreciseGeo` | A bid adapter or RTD submodule wants to access and/or transmit precise geolocation data to their endpoint | Component is allowed only 2-digit precision for latitude and longitude  | [`configName`](#params-fetchBids) |
 | `transmitTid` | A bid adapter or RTD submodule wants to access and/or transmit globally unique transaction IDs to their endpoint | Transaction IDs are hidden from the component | [`configName`](#params-fetchBids) |
 | `transmitUfpd` | A bid adapter or RTD submodule wants to access and/or transmit user FPD to their endpoint | User FPD is hidden from the component | [`configName`](#params-fetchBids) |
+| `loadExternalScript` | A bid adapter, analytics adapter, or module wants to load external script | Module is not allowed to load external script from `adloader.js` | None |
 
 <a id="parameters"></a>