feat: bump to Go 1.19 (#1411)

.github/workflows/coverage.yaml

@@ -22,7 +22,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
-          go-version: "1.18"
+          go-version: "1.19"
 
       - name: Checkout base branch
         uses: actions/checkout@v3

.github/workflows/lint.yaml

@@ -43,7 +43,7 @@ jobs:
     - name: Setup Go
       uses: actions/setup-go@v3
       with:
-        go-version: '1.18'
+        go-version: '1.19'
     - name: Install goimports
       run: go install golang.org/x/tools/cmd/goimports@latest
     - name: Checkout code

.github/workflows/tests.yaml

@@ -77,7 +77,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.18
+          go-version: 1.19
 
       - id: 'auth'
         name: 'Authenticate to Google Cloud'

.github/workflows/v1-periodic.yaml

@@ -37,7 +37,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.18
+          go-version: 1.19
 
       - id: 'auth'
         name: 'Authenticate to Google Cloud'

README.md

@@ -524,12 +524,6 @@ supported for 1 year.
 **Unsupported** - Any major version that has been deprecated for >=1 year is
 considered publicly unsupported.
 
-### Supported Go Versions
-
-We test and support at least the latest 3 Go versions. Changes in supported Go
-versions will be considered a minor change, and will be noted in the release
-notes.
-
 ### Release cadence
 
 The Cloud SQL Auth proxy aims for a minimum monthly release cadence. If no new

go.mod

@@ -1,6 +1,6 @@
 module github.com/GoogleCloudPlatform/cloud-sql-proxy/v2
 
-go 1.18
+go 1.19
 
 require (
 	cloud.google.com/go/cloudsqlconn v0.5.2

tests/common_test.go

@@ -16,7 +16,8 @@
 // works as expected when executed as a binary.
 //
 // Required flags:
-//    -mysql_conn_name, -db_user, -db_pass
+//
+//	-mysql_conn_name, -db_user, -db_pass
 package tests
 
 import (