ci(telegram): move notify step to Python, fix curl `<` parse bug #39

Job	Run time
build (aarch64-apple-darwin, macos-latest, mhrv-rs-macos-arm64)	3m 45s
android	3m 49s
build (x86_64-apple-darwin, macos-latest, mhrv-rs-macos-amd64)	3m 49s
build (x86_64-unknown-linux-gnu, ubuntu-22.04, mhrv-rs-linux-amd64)	3m 47s
build (aarch64-unknown-linux-musl, ubuntu-latest, mhrv-rs-linux-musl-arm64)	2m 27s
build (x86_64-pc-windows-gnu, windows-latest, mhrv-rs-windows-amd64)	3m 39s
build (arm-unknown-linux-gnueabihf, ubuntu-22.04, mhrv-rs-raspbian-armhf)	2m 34s
build (mipsel-unknown-linux-musl, ubuntu-latest, mhrv-rs-openwrt-mipsel-softfloat, true)	28s
build (aarch64-unknown-linux-gnu, ubuntu-22.04, mhrv-rs-linux-arm64)	2m 4s
build (x86_64-unknown-linux-musl, ubuntu-latest, mhrv-rs-linux-musl-amd64)	2m 44s
release	1s
telegram	1s
	29m 8s

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