disabled run on Polaris and edited test to use main version of diaspora-stream-api

Author: mdorier

.github/workflows/polaris.yml

@@ -2,9 +2,9 @@ name: Trigger performance testing on Polaris
 
 on:
   workflow_dispatch: {}
-  push:
-    branches:
-    - main
+#  push:
+#    branches:
+#    - main
 
 jobs:
   polaris:

tests/spack.yaml

@@ -9,7 +9,7 @@ spack:
   - nlohmann-json-schema-validator
   - spdlog
   - fmt
-  - diaspora-stream-api
+  - diaspora-stream-api@main
   - mochi-bedrock
   - mochi-warabi
   - mochi-yokan