chore(deps): update ghcr.io/uselagoon/lagoon-opensearch-sync docker tag to v0.8.3 #1889

Job	Run time
test-suite (active-standby-kubernetes)	15m 37s
test-suite (api)	21m 26s
test-suite (deploytarget)	14m 59s
test-suite (features-kubernetes)	18m 45s
test-suite (features-kubernetes-2)	21m 30s
test-suite (features-variables)	16m 18s
test-suite (services)	16m 17s
test-suite (tasks)	15m 13s
	2h 20m 5s

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