multi: bump Go version

Bump all build go versions to v1.21.0
Bump the minimum build package version to v1.19.0

Debian "buster" is not longer supported. Security updates have been
discontinued since June 30th 2022. We will build using the latest
version, "bookworm".

healthcheck/go.mod

@@ -1,16 +1,24 @@
 module github.com/lightningnetwork/lnd/healthcheck
 
-go 1.16
+go 1.19
 
 require (
 	github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f
-	github.com/kr/pretty v0.3.0 // indirect
 	github.com/lightningnetwork/lnd/ticker v1.1.0
 	github.com/lightningnetwork/lnd/tor v1.0.0
-	github.com/rogpeppe/go-internal v1.9.0 // indirect
 	github.com/stretchr/testify v1.8.2
+	golang.org/x/sys v0.8.0
+)
+
+require (
+	github.com/btcsuite/btcd v0.22.0-beta.0.20220207191057-4dc4ff7963b4 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/kr/pretty v0.3.0 // indirect
+	github.com/miekg/dns v1.1.43 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rogpeppe/go-internal v1.9.0 // indirect
 	golang.org/x/net v0.10.0 // indirect
 	golang.org/x/sync v0.2.0 // indirect
-	golang.org/x/sys v0.8.0
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )