Fix compilation for recent ESPHome

Compile issues with recent ESPHome versions fixed:

  - An error about toolchain-riscv32-esp not being found (the PlatformIO tool manager
    tries to install this one, even though the lamp is an ESP32 device and not riscv).
  - On systems for which the above toolchain could be found, compilation would fail
    with an error about `esp_mac.h` not being found.

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [next release]
 
 ### Fixed
+- Compile issues with recent ESPHome versions fixed:
+  - An error about toolchain-riscv32-esp not being found (the PlatformIO tool manager
+    tries to install this one, even though the lamp is an ESP32 device and not riscv).
+  - On systems for which the above toolchain could be found, compilation would fail
+    with an error about `esp_mac.h` not being found.
+
 - ESPHome's compile-time warnings about "GPIO<x> is a Strapping PIN and should
   be avoided" are now being suppressed. These warning are often interpreted
   by users of this firmware as problems. However, the pinouts are dictated by

packages/core.yaml

@@ -25,13 +25,6 @@ esp32:
       CONFIG_FREERTOS_UNICORE: y
     advanced:
       ignore_efuse_mac_crc: true
-    # Bugfix for ESPHome 2022.12.0 and up: fallback to older platform
-    # version, to prevent bricked devices. ESPHome uses newer versions
-    # by default.
-    # See also: https://github.com/mmakaay/esphome-xiaomi_bslamp2/issues/104
-    version: 4.3.2
-    source: ~3.40302.0
-    platform_version: platformio/espressif32 @ 3.5.0
 
 # Retrieve the code for the xiaomi_bslamp2 platform from GitHub.
 external_components: