refactor(*): clean up code

internal/releaser/util/util.go

@@ -0,0 +1,19 @@
+package util
+
+import (
+	"context"
+	"net/http"
+
+	"golang.org/x/oauth2"
+)
+
+//CreateBearerHTTPClient with given token
+func CreateBearerHTTPClient(ctx context.Context, token string) *http.Client {
+	tokenSource := oauth2.StaticTokenSource(&oauth2.Token{
+		AccessToken: token},
+	)
+
+	client := oauth2.NewClient(ctx, tokenSource)
+
+	return client
+}