Add v3.* tags as a trigger to release job #26

Job	Run time
Build and Push (baseos, images/baseos)	1m 8s
Build and Push (ccenv, images/ccenv)	3m 1s
Build and Push (peer, .)	10m 51s
Build and Push (orderer, .)	9m 23s
Build and Push (tools, .)	13m 26s
Build Fabric Binaries (fabric-ubuntu-20.04, linux, amd64)	1m 40s
Build Fabric Binaries (fabric-ubuntu-20.04, linux, arm64)	1m 57s
Build Fabric Binaries (macos-11, darwin, amd64)	1m 55s
Build Fabric Binaries (macos-11, darwin, arm64)	1m 54s
Build Fabric Binaries (fabric-windows-latest, windows, amd64)	1m 59s
Create GitHub Release	35s
	47m 49s

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