feat: add release-helm-chart (#10)

Reviewed-on: #10
Co-authored-by: Timo Behrendt <t.behrendt@t00n.de>
Co-committed-by: Timo Behrendt <t.behrendt@t00n.de>

release-helm-chart/action.yaml

@@ -0,0 +1,30 @@
+name: Release Helm chart
+description: Release the Helm chart
+
+inputs:
+  tag:
+    description: The tag to release
+    required: true
+  name:
+    description: The name of the Helm chart
+    required: true
+  registry-user:
+    description: The username for the registry
+    required: true
+  registry-password:
+    description: The password for the registry
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - shell: bash
+      run: |
+        helm package ${{ inputs.name }} --version ${{ inputs.tag }}
+    - shell: bash
+      run: |
+        curl --verbose --fail --show-error \
+          --user ${{ inputs.registry-user }}:${{ inputs.registry-password }} \
+          -X POST \
+          --upload-file ./${{ inputs.name }}-${{ inputs.tag }}.tgz \
+          https://gitea.t000-n.de/api/packages/${{ inputs.registry-user }}/helm/api/charts