sqlite: add diagnostic channel #4265

Job	Run time
Build slim tarball	1m 55s
aarch64-darwin: with shared libraries	16m 50s
x86_64-linux: with shared libraries	20m 32s
aarch64-linux: with shared libraries	17m 26s
x86_64-darwin: with shared libraries	33m 21s
	1h 30m 4s

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