Update 'Uptime' sensor lambda to be compatible with ESPHome 2026.1.0

[Roving-Ronin]

Corrects issues with STRINGS that occurs with update to ESP-IDF with ESPHome 2026.1.0

[MaJerle]

Couldn't the "uptime" sensor become a package if it is in every product?

[Roving-Ronin]

@MaJerle if you want to write it ;-) Hell I'd change a heap of stuff and add useful sensors (as per below), let alone use packages pulled from a single common file set, so instead of wasting time having to update lots of individual yaml, we'd only need to update a single core location for a change to affect all other configs (like I also do with my own configs)... but its Tarontop / Athoms repository and he prefers them all to operate seperately.

[MaJerle]

I don't. You've just said owner doesn't like this, so why bother.

[dewi-ny-je]

Is the calculation of hours minutes and seconds really needed? If the uptime is assigned the correct category home assistant will do it automatically, see a similar issue with another project which got solved by a simple "device class"

Hypfer/Valetudo#2335 (comment)