PG 13, 14 and Updated dependencies (#13)

Update go dependencies to latest 
Test and validate against PG 13 & 14 ( Issue #10 )

.gitignore

@@ -0,0 +1 @@
+postgresql-prometheus-adapter

README.md

@@ -14,6 +14,8 @@ Additional information regarding the adapter and getting started is provided bel
 
 PostgreSQL Prometheus Adapter supports:
 
+* PostgreSQL 14
+* PostgreSQL 13
 * PostgreSQL 12
 * PostgreSQL 11
 

go.mod

@@ -3,20 +3,15 @@ module github.com/crunchydata/postgresql-prometheus-adapter
 go 1.12
 
 require (
-	github.com/go-kit/kit v0.9.0
-	github.com/gogo/protobuf v1.2.1
-	github.com/golang/snappy v0.0.1
-	github.com/grpc-ecosystem/grpc-gateway v1.9.5 // indirect
-	github.com/jackc/pgx v3.6.1+incompatible // indirect
-	github.com/jackc/pgx/v4 v4.2.1
-	github.com/prometheus/client_golang v1.1.0
-	github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4
-	github.com/prometheus/common v0.6.0
-	github.com/prometheus/prometheus v0.0.0-20190710134608-e5b22494857d
-	github.com/spf13/cobra v0.0.5 // indirect
-	golang.org/x/crypto v0.0.0-20191105034135-c7e5f84aec59 // indirect
-	golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898 // indirect
-	google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55 // indirect
-	google.golang.org/grpc v1.23.0 // indirect
+	github.com/go-kit/kit v0.12.0
+	github.com/gogo/protobuf v1.3.2
+	github.com/golang/snappy v0.0.4
+	github.com/jackc/pgx/v4 v4.16.1
+	github.com/prometheus/client_golang v1.12.1
+	github.com/prometheus/common v0.34.0
+	github.com/prometheus/prometheus v0.35.0
+	golang.org/x/crypto v0.0.0-20220507011949-2cf3adece122 // indirect
+	golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6 // indirect
+	golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f // indirect
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 )