chore(deps): update alpine/helm docker tag to v4

.gitea/workflows/release-version.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Install helm
         env:
           # renovate: datasource=docker depName=alpine/helm
-          HELM_VERSION: "3.20.2"
+          HELM_VERSION: "4.1.4"
         run: |
           curl --fail --location --output /dev/stdout --silent --show-error https://get.helm.sh/helm-v${HELM_VERSION}-linux-$(dpkg --print-architecture).tar.gz | tar --extract --gzip --file /dev/stdin
           mv linux-$(dpkg --print-architecture)/helm /usr/local/bin/

.gitea/workflows/test-pr.yml

@@ -15,7 +15,7 @@ env:
 jobs:
   check-and-test:
     runs-on: ubuntu-latest
-    container: alpine/helm:3.20.2
+    container: alpine/helm:4.1.4
     steps:
       - name: install tools
         run: |

Chart.yaml

@@ -4,7 +4,7 @@ description: Gitea Helm chart for Kubernetes
 type: application
 version: 0.0.0
 # renovate datasource=github-releases depName=go-gitea/gitea extractVersion=^v(?<version>.*)$
-appVersion: 1.26.1
+appVersion: 1.25.5
 icon: https://gitea.com/assets/img/logo.svg
 
 annotations: