use Helm 3.20.0 as plugin installation fails with Helm 4

Author: DanielRaapDev

.github/workflows/test-charts.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Test Chart
         uses: d3adb5/helm-unittest-action@v2.5.0
         with:
-          helm-version: v4.1.0
+          helm-version: v3.20.0
 
       # validate YAML files with JSON schema
       - name: Install the JSON Schema CLI

chart-schema.json

@@ -11,4 +11,4 @@
 			}
 		}
 	}
-}
+}

charts/sophora-importer/Chart.yaml

@@ -19,7 +19,7 @@ version: 2.4.1
 annotations:
   artifacthub.io/changes: |
     - kind: fixed
-      description: "fix service port of httproute"
+      description: "fix service Port of httproute"
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to