Install esptool via tl-install routine (#219)

Author: Jason2866

platform.json

@@ -90,9 +90,10 @@
     },
     "tool-esptoolpy": {
       "type": "uploader",
-      "optional": false,
+      "optional": true,
       "owner": "pioarduino",
-      "version": "https://github.com/pioarduino/esptool/releases/download/v5.0.0/esptool.zip"
+      "package-version": "5.0.0",
+      "version": "https://github.com/pioarduino/registry/releases/download/0.0.1/esptoolpy-v5.0.0.zip"
     },
     "tl-install": {
       "type": "tool",

platform.py

@@ -430,6 +430,10 @@ def _configure_installer(self) -> None:
         if os.path.exists(installer_path):
             self.packages["tl-install"]["optional"] = True
 
+    def _install_esptool_package(self) -> None:
+        """Install esptool package required for all builds."""
+        self.install_tool("tool-esptoolpy")
+
     def _install_common_idf_packages(self) -> None:
         """Install common ESP-IDF packages required for all builds."""
         for package in COMMON_IDF_PACKAGES:
@@ -534,6 +538,7 @@ def configure_default_packages(self, variables: Dict, targets: List[str]) -> Any
         try:
             # Configuration steps
             self._configure_installer()
+            self._install_esptool_package()
             self._configure_arduino_framework(frameworks)
             self._configure_espidf_framework(frameworks, variables, board_config, mcu)
             self._configure_mcu_toolchains(mcu, variables, targets)