Update ghcr.io/esphome/esphome Docker tag to v2026.2.3

[renovate]

This PR contains the following updates:

Package	Update	Change
ghcr.io/esphome/esphome (source)	patch	2026.2.2 → 2026.2.3

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Release Notes

esphome/esphome (ghcr.io/esphome/esphome)

v2026.2.3

Compare Source

• [mqtt] Remove broken ESP8266 ssl_fingerprints option esphome#14182 by @​bdraco (breaking-change)
• [sprinkler] Fix millis overflow and underflow bugs esphome#14299 by @​swoboda1337
• [cc1101] Transition through IDLE in begin_tx/begin_rx for reliable state changes esphome#14321 by @​swoboda1337
• [zigbee] Fix codegen ordering for basic/identify attribute lists esphome#14343 by @​swoboda1337
• [uart] Revert UART0 default pin workarounds (fixed in ESP-IDF 5.5.2) esphome#14363 by @​bdraco
• [mipi_dsi] Fix Waveshare P4 7B board config esphome#14372 by @​clydebarrow
• [core] Defer entity automation codegen to prevent sibling ID deadlocks esphome#14381 by @​swoboda1337
• [improv_serial] Add missing USE_IMPROV_SERIAL define to fix WiFi scan filtering esphome#14359 by @​bdraco
• [uart] Fix flow_control_pin inverted flag ignored on ESP-IDF esphome#14410 by @​swoboda1337

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