proxy: v2.170.0 (#7571)

In addition to dependency updates, this change updates the inbound proxy
to handle opaquely transported HTTP traffic. This fixes an issue
encountered when a `Service`'s opaque ports annotation does not match
that of the pods in the service. This situation should be rare.

---

* Handle HTTP traffic over opaque transport connections (linkerd/linkerd2-proxy#1416)
* build(deps): bump tracing-subscriber from 0.3.3 to 0.3.4 (linkerd/linkerd2-proxy#1421)
* build(deps): bump pin-project from 1.0.8 to 1.0.9 (linkerd/linkerd2-proxy#1422)
* build(deps): bump tracing-subscriber from 0.3.4 to 0.3.5 (linkerd/linkerd2-proxy#1423)
* build(deps): bump pin-project from 1.0.9 to 1.0.10 (linkerd/linkerd2-proxy#1425)
* build(deps): bump http from 0.2.5 to 0.2.6 (linkerd/linkerd2-proxy#1424)
* build(deps): bump serde_json from 1.0.73 to 1.0.74 (linkerd/linkerd2-proxy#1427)
* Decouple client connection metadata from the I/O type (linkerd/linkerd2-proxy#1426)
* tests: rename 'metrics' addr to 'admin' (linkerd/linkerd2-proxy#1429)

.proxy-version

@@ -1 +1 @@
-v2.169.0
+v2.170.0