proxy: v2.173.0

This release updates the `tokio` and `tower` crates to unreleased
versions to pickup workarounds for `Instant`-related panics that occur
on Amazon Linux.

This release also updates the proxy's configuration logic to stop
logging errors when the inbound port configuration is empty.

---

* build(deps): bump rustls from 0.20.2 to 0.20.3 (linkerd/linkerd2-proxy#1495)
* build(deps): bump serde_json from 1.0.78 to 1.0.79 (linkerd/linkerd2-proxy#1494)
* build(deps): bump hdrhistogram from 7.4.0 to 7.5.0 (linkerd/linkerd2-proxy#1493)
* ci: Use cargo-action-fmt to annotate PRs (linkerd/linkerd2-proxy#1492)
* Do not error when `LINKERD2_PROXY_INBOUND_PORTS` is empty (linkerd/linkerd2-proxy#1478)
* build(deps): bump EmbarkStudios/cargo-deny-action from 1.2.11 to 1.2.12 (linkerd/linkerd2-proxy#1499)
* Fix dockerfile (linkerd/linkerd2-proxy#1500)
* Pin git deps for dependencies that have `Instant` workarounds (linkerd/linkerd2-proxy#1497)

.proxy-version

@@ -1 +1 @@
-v2.172.0
+v2.173.0