lnd: patch update from 0.17.2 to 0.17.3

a concurrency and memory related hotfix release.

https://github.com/lightningnetwork/lnd/blob/v0.17.3-beta/docs/release-notes/release-notes-0.17.3.md

lnd/env

@@ -1,6 +1,6 @@
-LND_VERSION_DIR_AARCH64=lnd-linux-arm64-v0.17.2-beta
-LND_URL_AARCH64=https://github.com/lightningnetwork/lnd/releases/download/v0.17.2-beta/lnd-linux-arm64-v0.17.2-beta.tar.gz
-LND_SHA256_AARCH64=95a5a46441c3300821eccd1771085cdd34bf615d069f4d9e654f828e874abe27
+LND_VERSION_DIR_AARCH64=lnd-linux-arm64-v0.17.3-beta
+LND_URL_AARCH64=https://github.com/lightningnetwork/lnd/releases/download/v0.17.3-beta/lnd-linux-arm64-v0.17.3-beta.tar.gz
+LND_SHA256_AARCH64=89fe64338c4d92da25552224bc3adbd32e53283954bc8e4803354b0387782402
 
 # binaries and config root; data is elsewhere, in /ssd/lnd as per lnd conf.
 LND_HOME=/home/lnd