add esp32c3 examples #211

Job	Run time
Build Examples	23s
Check	8s
Check subtrees are up to date	3s
Build ESP32-C3 Examples (esp32c3-power-meter-mock, build, --release)	37s
Lints	13s
Build ESP32-C3 Examples (esp32c3-power-meter-mock, fmt, --all -- --check --color always)	13s
Semver Checks	11s
Test Suite	34s
Build ESP32-C3 Examples (esp32c3-power-meter-mock, clippy, --all-features --workspace -- -D warni...	38s
Build ESP32-C3 Examples (esp32c3-sml-reader, build, --release)	50s
Build ESP32-C3 Examples (esp32c3-sml-reader, fmt, --all -- --check --color always)	14s
Build ESP32-C3 Examples (esp32c3-sml-reader, clippy, --all-features --workspace -- -D warnings)	48s
Build ESP32-C3 Examples (esp32c3-sml-reader-async, build, --release)	40s
Build ESP32-C3 Examples (esp32c3-sml-reader-async, fmt, --all -- --check --color always)	13s
Build ESP32-C3 Examples (esp32c3-sml-reader-async, clippy, --all-features --workspace -- -D warni...	37s
	6m 22s

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