docs: update agents/rust/mediator/README.md #6372

Job	Run time
verify-code-formatting	21s
aries_vcx_core_clippy (credx,vdrtools_wallet)	3m 32s
aries_vcx_clippy (credx,vdrtools_wallet)	4m 10s
aries_vcx_core_clippy (vdr_proxy_ledger)	4m 42s
aries_vcx_clippy (vdr_proxy_ledger)	4m 36s
workflow-setup	31s
workspace_clippy	6m 28s
workflow-setup-check	1s
test-unit-workspace	8m 22s
build-docker-vdrproxy	6s
code-coverage-aries-vcx-integration-modular-libs	12m 32s
test-integration-aries-vcx	7m 28s
test-integration-aries-vcx-mysql	9m 49s
test-integration-libvcx	9m 13s
x86_64-unknown-linux-gnu	5m 42s
x86_64-unknown-linux-musl	11m 25s
x86_64-apple-darwin	11m 24s
aarch64-apple-darwin	19m 23s
test-integration-did-crate	6m 30s
test-integration-node-wrapper (18.x)	16m 48s
test-integration-aries-vcx-vdrproxy	4m 29s
publish-docker-vdrproxy	11s
make-release	0s
publish-napi	1m 0s
publish-node-wrapper	28s
publish-agent-core	55s
	2h 30m 6s

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