chore: update for 2.8.1 (#3170)

Co-authored-by: bartlomieju <bartlomieju@users.noreply.github.com>

Author: denobot

replacements.json

@@ -1,3 +1,3 @@
 {
-  "CLI_VERSION": "2.8.0"
+  "CLI_VERSION": "2.8.1"
 }

runtime/reference/cli/_commands_reference.json

@@ -2943,6 +2943,33 @@
           "help_heading": null,
           "usage": "--v8-flags[=<V8_FLAGS>...]"
         },
+        {
+          "name": "watch",
+          "short": null,
+          "long": "watch",
+          "required": false,
+          "help": "Watch for file changes and restart process automatically.\n  \u001b[38;5;245mOnly local files from entry point module graph are watched.\u001b[39m",
+          "help_heading": "File watching options",
+          "usage": "--watch"
+        },
+        {
+          "name": "watch-exclude",
+          "short": null,
+          "long": "watch-exclude",
+          "required": false,
+          "help": "Exclude provided files/patterns from watch mode",
+          "help_heading": "File watching options",
+          "usage": "--watch-exclude[=<FILES>...]"
+        },
+        {
+          "name": "no-clear-screen",
+          "short": null,
+          "long": "no-clear-screen",
+          "required": false,
+          "help": "Do not clear terminal screen when under watch mode",
+          "help_heading": "File watching options",
+          "usage": "--no-clear-screen"
+        },
         {
           "name": "unstable",
           "short": null,