build(deps): bump esphome from 2026.4.0 to 2026.4.2

[dependabot]

Bumps esphome from 2026.4.0 to 2026.4.2.

Release notes

Sourced from esphome's releases.

2026.4.2

• [lvgl] Fix format of hello world page esphome#15868 by @​clydebarrow
• [lvgl] Fix overloads for setting images on styles esphome#15864 by @​clydebarrow
• [lvgl] Fix update of textarea attached to keyboard esphome#15866 by @​clydebarrow
• [image] Fix rodata bloat for multi-frame RGB565+alpha animations esphome#15873 by @​swoboda1337
• [core] Fix Pvariable placement new losing subclass identity esphome#15881 by @​swoboda1337
• [ld2412] Fix null deref in set_basic_config when entities unconfigured esphome#15893 by @​swoboda1337
• [esp32] Add Secure Boot V1 ECDSA signing scheme for pre-rev-3.0 ESP32 esphome#15882 by @​kbx81 (new-feature)
• [io_expanders] Self-heal interrupt-driven expanders when INT stays asserted across the read esphome#15923 by @​swoboda1337
• [usb_uart] Derive TX output chunk count from buffer_size config esphome#15909 by @​kbx81

2026.4.1

• [core] Fix app_state_ status bits clobbered for non-looping components esphome#15658 by @​bdraco
• [core] Inline feed_wdt hot path with out-of-line slow path esphome#15656 by @​bdraco
• [st7789v] Fix swapped offset_width/offset_height in model presets esphome#15755 by @​swoboda1337
• [sx126x][sx127x] Fix frequency precision loss from float32 codegen esphome#15753 by @​swoboda1337
• Bump aioesphomeapi from 44.15.0 to 44.16.0 esphome#15757 by @​dependabot[bot]
• [lvgl] Clean the build if lv_conf.h changes esphome#15777 by @​clydebarrow
• [mitsubishi_cn105] use HEAT_COOL mode to enable temperature slider esphome#15748 by @​crnjan
• [core] Diagnose missing cg.templatable in codegen for TEMPLATABLE_VALUE fields esphome#15758 by @​bdraco
• [time] Fix RTC is_valid() rejecting valid times after day_of_year cleanup esphome#15763 by @​bdraco
• [qmc5883l] Move per-update log line from DEBUG to VERBOSE esphome#15781 by @​swoboda1337
• [bundle] Force-resolve nested IncludeFile during file discovery esphome#15762 by @​bdraco
• [ili9xxx] Guard against null buffer in display_() when allocation fails esphome#15786 by @​bdraco
• [esp32] Accept unquoted minimum_chip_revision values esphome#15785 by @​swoboda1337
• [lvgl] Guard lv_image_set_src wrapper with LV_USE_IMAGE esphome#15789 by @​swoboda1337
• [runtime_stats] Track main loop active time and report overhead esphome#15743 by @​bdraco (new-feature)
• [mipi_spi] Drawing fixes for native display esphome#15802 by @​clydebarrow
• [image] Fix byte order handling esphome#15800 by @​clydebarrow
• [core] coerce set_interval(0) / update_interval: 0ms to 1ms esphome#15799 by @​bdraco
• [ethernet] Fix SPI3_HOST default breaking compile on variants without SPI3 esphome#15809 by @​swoboda1337
• [core] Fix DelayAction compile error with non-const reference args esphome#15814 by @​bdraco
• [esp32] Downgrade unneeded ignore_pin_validation_error to a warning esphome#15811 by @​swoboda1337
• [runtime_image] Fix RGB order esphome#15813 by @​clydebarrow
• [lvgl] Fix crash with snow on rotated display esphome#15822 by @​clydebarrow
• [core] Feed WDT unconditionally in main loop to fix empty-config panic esphome#15830 by @​bdraco
• Bump aioesphomeapi from 44.16.0 to 44.16.1 esphome#15836 by @​dependabot[bot]
• [core] Default PollingComponent() to 1ms when codegen is bypassed esphome#15831 by @​bdraco
• [substitutions] Fix substitutions: !include file.yaml regression esphome#15850 by @​bdraco
• [packages] Improve error messages with include stack and fix missing path propagation esphome#15844 by @​jpeletier
• [lvgl] Fix angles for arc esphome#15860 by @​clydebarrow

Commits

• 6ca5b31 Merge pull request #15933 from esphome/bump-2026.4.2
• 00b7120 Bump version to 2026.4.2
• 76eb8f6 [usb_uart] Derive TX output chunk count from buffer_size config (#15909)
• 2a3bd8b [io_expanders] Self-heal interrupt-driven expanders when INT stays asserted a...
• 629da4d [esp32] Add Secure Boot V1 ECDSA signing scheme for pre-rev-3.0 ESP32 (#15882)
• 5c2ceb6 [ld2412] Fix null deref in set_basic_config when entities unconfigured (#15893)
• 92cb6dd [core] Fix Pvariable placement new losing subclass identity (#15881)
• 06e5931 [image] Fix rodata bloat for multi-frame RGB565+alpha animations (#15873)
• dc5b062 [lvgl] Fix update of textarea attached to keyboard (#15866)
• 3d0a242 [lvgl] Fix overloads for setting images on styles (#15864)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)