CVE-2024-24790: bump go to 1.22.6 (#917)

* bump CircleCI builder image

Signed-off-by: Janne Kataja <janne.kataja@sdx.com>

* bump go to 1.22

Signed-off-by: Janne Kataja <janne.kataja@sdx.com>

---------

Signed-off-by: Janne Kataja <janne.kataja@sdx.com>

Author: sdx-jkataja

.circleci/config.yml

@@ -6,7 +6,7 @@ executors:
   # This must match .promu.yml.
   golang:
     docker:
-      - image: cimg/go:1.21
+      - image: cimg/go:1.22.6
 jobs:
   test:
     executor: golang

.promu.yml

@@ -1,6 +1,6 @@
 go:
     # This must match .circle/config.yml.
-    version: 1.21
+    version: 1.22
 repository:
     path: github.com/prometheus-community/elasticsearch_exporter
 build: