Esp32 build fixes #851

Job	Run time
build (macos-latest, esp8266, gcc)	27m 48s
build (macos-latest, host, gcc)	19m 16s
build (macos-latest, rp2040, gcc)	13m 39s
build (ubuntu-latest, esp8266, gcc)	17m 57s
build (ubuntu-latest, host, clang, Host)	26m 44s
build (ubuntu-latest, host, gcc)	22m 0s
build (ubuntu-latest, host, gcc64, Host)	21m 6s
build (ubuntu-latest, rp2040, gcc)	17m 17s
build (windows-latest, esp8266, gcc)	9m 35s
build (windows-latest, host, gcc)	28m 2s
build (windows-latest, rp2040, gcc)	8m 41s
	3h 32m 5s

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