*: bump golangci-lint v2.6.2 (#4142)

As per the title

category: misc
ticket: none

Author: KaloyanTanev

.github/workflows/golangci-lint.yml

@@ -19,4 +19,4 @@ jobs:
       - name: golangci-lint
         uses: golangci/golangci-lint-action@e7fa5ac41e1cf5b7d48e45e42232ce7ada589601 # v9.1.0
         with:
-          version: v2.6.1
+          version: v2.6.2

cmd/testmev.go

@@ -445,6 +445,7 @@ func getBlockHeader(ctx context.Context, target string, headers map[string]strin
 	for k, v := range headers {
 		req.Header.Set(k, v)
 	}
+
 	req.Header.Set("Date-Milliseconds", strconv.FormatInt(time.Now().UnixMilli(), 10))
 
 	resp, err := http.DefaultTransport.RoundTrip(req)

core/fetcher/fetcher.go

@@ -310,6 +310,7 @@ func (f *Fetcher) fetchProposerData(ctx context.Context, slot uint64, defSet cor
 		if proposal.Blinded {
 			blinded = 1
 		}
+
 		proposalBlindedGauge.Set(blinded)
 
 		resp[pubkey] = coreProposal

core/fetcher/metrics.go

@@ -8,11 +8,9 @@ import (
 	"github.com/obolnetwork/charon/app/promauto"
 )
 
-var (
-	proposalBlindedGauge = promauto.NewGauge(prometheus.GaugeOpts{
-		Namespace: "core",
-		Subsystem: "fetcher",
-		Name:      "proposal_blinded",
-		Help:      "Whether the fetched proposal was blinded (1) or local (0)",
-	})
-)
+var proposalBlindedGauge = promauto.NewGauge(prometheus.GaugeOpts{
+	Namespace: "core",
+	Subsystem: "fetcher",
+	Name:      "proposal_blinded",
+	Help:      "Whether the fetched proposal was blinded (1) or local (0)",
+})