refactor(mediator): remove client-webapi #6421

Job	Run time
workflow-setup	38s
aries_vcx_clippy (credx,vdrtools_wallet)	3m 22s
workspace_clippy	6m 51s
aries_vcx_clippy (vdr_proxy_ledger)	4m 46s
aries_vcx_core_clippy (credx,vdrtools_wallet)	3m 24s
verify-code-formatting	23s
aries_vcx_core_clippy (vdr_proxy_ledger)	3m 58s
workflow-setup-check	2s
build-docker-vdrproxy	6s
code-coverage-aries-vcx-integration-modular-libs	6m 13s
test-unit-workspace	4m 2s
test-integration-aries-vcx	4m 23s
x86_64-unknown-linux-gnu	4m 40s
test-integration-aries-vcx-mysql	6m 34s
test-integration-did-crate	4m 48s
x86_64-unknown-linux-musl	9m 22s
x86_64-apple-darwin	9m 49s
aarch64-apple-darwin	21m 46s
test-integration-libvcx	3m 48s
test-integration-node-wrapper (18.x)	9m 9s
test-integration-aries-vcx-vdrproxy	5m 35s
publish-docker-vdrproxy	10s
make-release	0s
publish-napi	54s
publish-node-wrapper	35s
publish-agent-core	48s
	1h 56m 6s

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