deps: upgrade yamux from v0.1.1 to v0.1.2 (#24058)

The main point of this dependency upgrade is to pull in the fixes in
hashicorp/yamux#127 which prevents leaking deadlocked goroutines. It has
been observed to improve the issue in #23305 but does not
seem sufficient to fix it entirely.

Since touching yamux is a rare and scary event, I do **not** intend to
backport this. If we discover the improvements are stable and
significant enough, or if further fixes land in yamux, backporting can
be done at that time.

.changelog/24058.txt

@@ -0,0 +1,3 @@
+```release-note:improvement
+deps: Upgraded yamux to v0.1.2 to fix a bug where RPC connections could deadlock
+```

go.mod

@@ -87,7 +87,7 @@ require (
 	github.com/hashicorp/raft-boltdb/v2 v2.3.0
 	github.com/hashicorp/serf v0.10.2-0.20240320153621-5d32001edfaa
 	github.com/hashicorp/vault/api v1.10.0
-	github.com/hashicorp/yamux v0.1.1
+	github.com/hashicorp/yamux v0.1.2
 	github.com/hpcloud/tail v1.0.1-0.20170814160653-37f427138745
 	github.com/klauspost/cpuid/v2 v2.2.8
 	github.com/kr/pretty v0.3.1

go.sum

@@ -769,8 +769,8 @@ github.com/hashicorp/vault/api/auth/kubernetes v0.5.0 h1:CXO0fD7M3iCGovP/UApeHhP
 github.com/hashicorp/vault/api/auth/kubernetes v0.5.0/go.mod h1:afrElBIO9Q4sHFVuVWgNevG4uAs1bT2AZFA9aEiI608=
 github.com/hashicorp/vic v1.5.1-0.20190403131502-bbfe86ec9443 h1:O/pT5C1Q3mVXMyuqg7yuAWUg/jMZR1/0QTzTRdNR6Uw=
 github.com/hashicorp/vic v1.5.1-0.20190403131502-bbfe86ec9443/go.mod h1:bEpDU35nTu0ey1EXjwNwPjI9xErAsoOCmcMb9GKvyxo=
-github.com/hashicorp/yamux v0.1.1 h1:yrQxtgseBDrq9Y652vSRDvsKCJKOUD+GzTS4Y0Y8pvE=
-github.com/hashicorp/yamux v0.1.1/go.mod h1:CtWFDAQgb7dxtzFs4tWbplKIe2jSi3+5vKbgIO0SLnQ=
+github.com/hashicorp/yamux v0.1.2 h1:XtB8kyFOyHXYVFnwT5C3+Bdo8gArse7j2AQ0DA0Uey8=
+github.com/hashicorp/yamux v0.1.2/go.mod h1:C+zze2n6e/7wshOZep2A70/aQU6QBRWJO/G6FT1wIns=
 github.com/hexdigest/gowrap v1.1.7/go.mod h1:Z+nBFUDLa01iaNM+/jzoOA1JJ7sm51rnYFauKFUB5fs=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/hpcloud/tail v1.0.1-0.20170814160653-37f427138745 h1:8as8OQ+RF1QrsHvWWsKBtBKINhD9QaD1iozA1wrO4aA=