Remove msg-sending IO for issuer and holder #5836

Job	Run time
verify-code-formatting	22s
check-aries-vcx-feature-variants	9m 33s
check-did-resolver-feature-variants	3m 39s
clippy-aries-vcx	3m 54s
workflow-setup	35s
workflow-setup-check	1s
code-coverage-aries-vcx-integration-modular-libs	25m 38s
test-unit-workspace (anoncreds_vdrtools)	3m 6s
test-unit-workspace (anoncreds_credx)	3m 29s
build-docker-vdrproxy	11s
test-integration-aries-vcx (vdrtools)	25m 37s
test-integration-aries-vcx (modular_libs)	25m 5s
test-integration-aries-vcx-migration	20m 57s
test-integration-aries-vcx-mysql	5m 22s
test-integration-did-crate	3m 39s
test-integration-libvcx (anoncreds_vdrtools)	5m 40s
test-integration-libvcx (anoncreds_credx)	5m 10s
test-integration-node-wrapper (18.x)	11m 6s
test-node-wrapper (18.x)	2m 49s
x86_64-unknown-linux-gnu	13m 56s
x86_64-unknown-linux-musl	10m 27s
x86_64-apple-darwin	16m 34s
aarch64-apple-darwin	41m 10s
test-integration-aries-vcx-vdrproxy	26m 17s
publish-docker-vdrproxy	10s
make-release	0s
publish-napi	1m 7s
publish-node-wrapper	34s
publish-agent-core	49s
	4h 26m 57s

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