Add --all option to the dotnet tool update (#46888)

Author: BartoszKlonowski

docs/core/tools/dotnet-tool-update.md

@@ -15,23 +15,23 @@ ms.date: 03/15/2024
 
 ```dotnetcli
 dotnet tool update <PACKAGE_ID> -g|--global
-    [--add-source <SOURCE>] [--allow-downgrade]
+    [--add-source <SOURCE>] [--all] [--allow-downgrade]
     [--configfile <FILE>]
     [--disable-parallel] [--framework <FRAMEWORK>]
     [--ignore-failed-sources] [--interactive]
     [--no-cache] [--prerelease]
     [-v|--verbosity <LEVEL>] [--version <VERSION>]
 
 dotnet tool update <PACKAGE_ID> --tool-path <PATH>
-    [--add-source <SOURCE>] [--allow-downgrade]
+    [--add-source <SOURCE>] [--all] [--allow-downgrade]
     [--configfile <FILE>]
     [--disable-parallel] [--framework <FRAMEWORK>]
     [--ignore-failed-sources] [--interactive] 
     [--no-cache] [--prerelease]
     [-v|--verbosity <LEVEL>] [--version <VERSION>]
 
 dotnet tool update <PACKAGE_ID> --local
-    [--add-source <SOURCE>] [--allow-downgrade]
+    [--add-source <SOURCE>] [--all] [--allow-downgrade]
     [--configfile <FILE>]
     [--disable-parallel] [--framework <FRAMEWORK>]
     [--ignore-failed-sources] [--interactive]
@@ -60,6 +60,10 @@ The `dotnet tool update` command provides a way for you to update .NET tools on
 
 [!INCLUDE [add-source](../../../includes/cli-add-source.md)]
 
+- **`--all`**
+
+  Update all tools.
+
 [!INCLUDE [allow-downgrade](../../../includes/cli-allow-downgrade.md)]
 
 [!INCLUDE [configfile](../../../includes/cli-configfile.md)]