chore(reloader): manage the reloader release from the repository

Reloader has been running since 23 September and is what makes the
reloader.stakater.com/auto annotation on a pod template do anything, but the
repository only held a namespace. It was a release someone installed by hand,
so it was invisible to review, invisible to Renovate, and one reinstall away from
being silently dropped.

Declaring it in HELM_RELEASES pins the chart version somewhere Renovate can
update it, and the active marker means the namespace is applied before the
upgrade instead of only existing as a side effect of the original install.

The values file sets nothing the running release does not already do, apart from
resource requests and limits, which the chart leaves empty.

renovate/k8s/configmap.yaml

@@ -92,6 +92,15 @@ data:
           "matchStrings": ["(?:^|\\n)KUBECONFORM_VERSION=\"(?<currentValue>[0-9.]+)\""],
           "datasourceTemplate": "github-tags",
           "depNameTemplate": "yannh/kubeconform"
+        },
+        {
+          "customType": "regex",
+          "description": "stakater/reloader chart version pinned in the deploy workflow",
+          "managerFilePatterns": ["^\\.gitea/workflows/deploy-lib\\.sh$"],
+          "matchStrings": ["\\|stakater/reloader\\|reloader\\|(?<currentValue>[0-9.]+)\\|"],
+          "datasourceTemplate": "helm",
+          "depNameTemplate": "reloader",
+          "registryUrlTemplate": "https://stakater.github.io/stakater-charts"
         }
       ],
       "packageRules": [