Update Go (prometheus#688)

* Update Go

* Update Go to 1.19.
* Update some Go modules.

Signed-off-by: SuperQ <[email protected]>

Author: SuperQ

.circleci/config.yml

@@ -7,7 +7,7 @@ executors:
   # should also be updated.
   golang:
     docker:
-      - image: cimg/go:1.18
+      - image: cimg/go:1.19
 jobs:
   test:
     executor: golang
@@ -18,7 +18,7 @@ jobs:
           file: mysqld_exporter
   integration:
     docker:
-      - image: cimg/go:1.18
+      - image: cimg/go:1.19
       - image: << parameters.mysql_image >>
         environment:
           MYSQL_ALLOW_EMPTY_PASSWORD: "yes"

.promu.yml

@@ -1,7 +1,7 @@
 go:
     # Whenever the Go version is updated here, .circle/config.yml should also
     # be updated.
-    version: 1.18
+    version: 1.19
 repository:
     path: github.com/prometheus/mysqld_exporter
 build:

collector/heartbeat.go

@@ -69,8 +69,10 @@ var (
 // This is mainly targeting pt-heartbeat, but will work with any heartbeat
 // implementation that writes to a table with two columns:
 // CREATE TABLE heartbeat (
-//  ts                    varchar(26) NOT NULL,
-//  server_id             int unsigned NOT NULL PRIMARY KEY,
+//
+//	ts                    varchar(26) NOT NULL,
+//	server_id             int unsigned NOT NULL PRIMARY KEY,
+//
 // );
 type ScrapeHeartbeat struct{}
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/prometheus/mysqld_exporter
 
-go 1.17
+go 1.18
 
 require (
 	github.com/DATA-DOG/go-sqlmock v1.5.0