[renovate] Update module github.com/prometheus/client_golang to v1.20.0

See merge request !1002

Co-authored-by: Renovate Bot <renovate@danet.fbi.h-da.de>

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/openconfig/gnmi v0.11.0
 	github.com/openconfig/goyang v1.6.0
 	github.com/openconfig/ygot v0.29.20
-	github.com/prometheus/client_golang v1.19.1
+	github.com/prometheus/client_golang v1.20.0
 	github.com/pterm/pterm v0.12.79
 	github.com/sethvargo/go-password v0.3.1
 	github.com/sirupsen/logrus v1.9.3

go.sum

@@ -269,6 +269,8 @@ github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRI
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_golang v1.19.1 h1:wZWJDwK+NameRJuPGDhlnFgx8e8HN3XHQeLaYJFJBOE=
 github.com/prometheus/client_golang v1.19.1/go.mod h1:mP78NwGzrVks5S2H6ab8+ZZGJLZUq1hoULYBAYBw1Ho=
+github.com/prometheus/client_golang v1.20.0 h1:jBzTZ7B099Rg24tny+qngoynol8LtVYlA2bqx3vEloI=
+github.com/prometheus/client_golang v1.20.0/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.6.1 h1:ZKSh/rekM+n3CeS952MLRAdFwIKqeY8b62p8ais2e9E=
 github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQyHDk9E3jmP2AmGiY=