fix: Gitea | use ephemeral storage for package chunk uploads

This helps speed up uploads since we use ephemeral storage for the
chunks rather than eating the overhead of encrypted persistant storage
for chunks, followed by copying over chunks to the final package.

helm/values/gitea.values.yaml

@@ -89,6 +89,10 @@ gitea:
         secretKeyRef:
           name: smtp-token
           key: gitea-password
+    - name: GITEA__PACKAGES__CHUNKED_UPLOAD_PATH
+      value: "/tmp/gitea-uploads"
+    - name: GITEA__PACKAGES__CHUNKED_UPLOAD_CONCURRENCY
+      value: "4"
 persistence:
   enabled: true
   size: 50Gi
@@ -131,6 +135,8 @@ extraVolumes:
                 path: cert.pem
               - key: tls.key
                 path: key.pem
+  - name: gitea-temp
+    emptyDir: {}
 extraInitVolumeMounts:
   - name: ssl-bundle
     mountPath: /opt/gitea/.postgresql
@@ -142,6 +148,8 @@ extraContainerVolumeMounts:
   - name: tls-bundle
     mountPath: /opt/gitea/tls
     readOnly: true
+  - name: gitea-temp
+    mountPath: /tmp/gitea-uploads
 postgresql-ha:
   enabled: false
 valkey-cluster: