Update to Go 1.21

and latest golangci-lint

Signed-off-by: Matthias Rampke <[email protected]>

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
     # Whenever the Go version is updated here, .promu.yml
     # should also be updated.
     container:
-      image: quay.io/prometheus/golang-builder:1.19-base
+      image: quay.io/prometheus/golang-builder:1.21-base
     steps:
       - uses: actions/checkout@v3
       - uses: prometheus/[email protected]
@@ -39,11 +39,11 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v3
         with:
-          go-version: '<1.18'
+          go-version: 1.21.x
       - name: Lint
         uses: golangci/[email protected]
         with:
-          version: v1.50.1
+          version: v1.55.2
 
   publish_main:
     name: Publish main branch artifacts

.promu.yml

@@ -1,7 +1,7 @@
 go:
-    # Whenever the Go version is updated here, .circle/config.yml should also
+    # Whenever the Go version is updated here, go-version in .github/workflows/ci.yml should also
     # be updated.
-    version: 1.19
+    version: 1.21
 repository:
     path: github.com/prometheus/influxdb_exporter
 build: