Move Helm unittests into subfolder (#750)

Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/750
Co-authored-by: justusbunsi <sk.bunsenbrenner@gmail.com>
Co-committed-by: justusbunsi <sk.bunsenbrenner@gmail.com>

unittests/helm/deployment/basic.yaml

@@ -0,0 +1,31 @@
+suite: deployment template (basic)
+release:
+  name: gitea-unittests
+  namespace: testing
+templates:
+  - templates/gitea/deployment.yaml
+  - templates/gitea/config.yaml
+tests:
+  - it: renders a deployment
+    template: templates/gitea/deployment.yaml
+    asserts:
+      - hasDocuments:
+          count: 1
+      - containsDocument:
+          kind: Deployment
+          apiVersion: apps/v1
+          name: gitea-unittests
+  - it: deployment labels are set
+    template: templates/gitea/deployment.yaml
+    set:
+      deployment.labels:
+        hello: world
+    asserts:
+      - isSubset:
+          path: metadata.labels
+          content:
+            hello: world
+      - isSubset:
+          path: spec.template.metadata.labels
+          content:
+            hello: world