Merge pull request #11143 from hashicorp/b-gh-11026

deps: update go-plugin to v1.4.3 to fix Windows handle leak.

.changelog/11143.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+deps: Updated `hashicorp/go-plugin` to v1.4.3 to fix handles leakage on Windows platforms
+```

go.mod

@@ -68,7 +68,7 @@ require (
 	github.com/hashicorp/go-memdb v1.3.0
 	github.com/hashicorp/go-msgpack v1.1.5
 	github.com/hashicorp/go-multierror v1.1.1
-	github.com/hashicorp/go-plugin v1.4.0
+	github.com/hashicorp/go-plugin v1.4.3
 	github.com/hashicorp/go-sockaddr v1.0.2
 	github.com/hashicorp/go-syslog v1.0.0
 	github.com/hashicorp/go-uuid v1.0.2

go.sum

@@ -407,8 +407,8 @@ github.com/hashicorp/go-multierror v1.1.0/go.mod h1:spPvp8C1qA32ftKqdAHm4hHTbPw+
 github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
 github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
 github.com/hashicorp/go-plugin v1.0.1/go.mod h1:++UyYGoz3o5w9ZzAdZxtQKrWWP+iqPBn3cQptSMzBuY=
-github.com/hashicorp/go-plugin v1.4.0 h1:b0O7rs5uiJ99Iu9HugEzsM67afboErkHUWddUSpUO3A=
-github.com/hashicorp/go-plugin v1.4.0/go.mod h1:5fGEH17QVwTTcR0zV7yhDPLLmFX9YSZ38b18Udy6vYQ=
+github.com/hashicorp/go-plugin v1.4.3 h1:DXmvivbWD5qdiBts9TpBC7BYL1Aia5sxbRgQB+v6UZM=
+github.com/hashicorp/go-plugin v1.4.3/go.mod h1:5fGEH17QVwTTcR0zV7yhDPLLmFX9YSZ38b18Udy6vYQ=
 github.com/hashicorp/go-raftchunking v0.6.1/go.mod h1:cGlg3JtDy7qy6c/3Bu660Mic1JF+7lWqIwCFSb08fX0=
 github.com/hashicorp/go-retryablehttp v0.5.3/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
 github.com/hashicorp/go-retryablehttp v0.5.4/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=