[extension/encoding] Add avrologencodingextension (#31923) #7

Job	Run time
windows-unittest-matrix (receiver-0)	18m 43s
windows-unittest-matrix (receiver-1)	17m 46s
windows-unittest-matrix (processor)	15m 51s
windows-unittest-matrix (exporter)	26m 20s
windows-unittest-matrix (extension)	14m 9s
windows-unittest-matrix (internal)	13m 22s
windows-unittest-matrix (pkg)	11m 58s
windows-unittest-matrix (cmd)	22m 52s
windows-unittest-matrix (other)	22m 44s
windows-unittest	4s
	2h 43m 49s

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