[release-11.3.4] Chore: Update alpine docker image (minor) - 3.20.5 to 3.20.6 [security] (#100829)

Chore: Update alpine docker image (minor) - 3.20.5 to 3.20.6 [security] (#100791)

* Chore: Update alpine docker image (minor) - 3.20.5 to 3.20.6 [sec-fixes]

* Chore: Regenerate .drone.yml

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Co-authored-by: Matheus Macabu <macabu.matheus@gmail.com>
(cherry picked from commit 27837ee937)

Co-authored-by: Robert Goltz <github@rgoltz.de>

scripts/drone/utils/images.star

@@ -16,7 +16,7 @@ images = {
     "node_deb": "node:{}-bookworm".format(nodejs_version[:2]),
     "cloudsdk": "google/cloud-sdk:431.0.0",
     "publish": "grafana/grafana-ci-deploy:1.3.3",
-    "alpine": "alpine:3.20.5",
+    "alpine": "alpine:3.20.6",
     "ubuntu": "ubuntu:22.04",
     "curl": "byrnedo/alpine-curl:0.1.8",
     "plugins_slack": "plugins/slack",