ci: run readme sync only on readme change #365

Job	Run time
Build, stable, linux/amd64	10m 12s
Build, stable, linux/arm64	1h 13m 42s
Anchore Container Scan, linux/amd64	1m 33s
Test novolume, stable, linux/amd64	2m 17s
Test, stable, linux/amd64	1h 22m 25s
Test basic, stable, linux/amd64	2m 7s
Test SAML, stable, linux/amd64	2m 17s
Test SSL, stable, linux/amd64	2m 1s
Test split, stable, linux/amd64	2m 26s
Trivy Container Scan, linux/amd64	2m 21s
Publish to GitHub, stable	0s
Publish to Docker Hub, stable	0s
	3h 1m 21s

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