SIENTIAPDE-1773

Enhance environment configuration and update dependencies

- Added new environment variables for PluginStore and MLflow configuration in `.env.example`, including `RUNTIME`, `STORE_BASE_URL`, `STORE_OWNER`, `STORE_REPO`, `STORE_BRANCH`, `STORE_USERNAME`, `STORE_PASSWORD`, `STORE_CACHE_TTL_SECONDS`, `PYPI_SERVER`, `PYPI_USERNAME`, and `PYPI_PASSWORD`.
- Updated `git-requirements-mapping.txt` to reflect changes in repository names.
- Modified `requirements-light.txt` and `requirements.txt` to upgrade `sientia-dataops-library` to version 1.12.0 and `sientia-mlops-library` to version 0.8.1.
- Updated `values.yaml` to include new environment variables for worker runtime and PluginStore configuration.
- Refactored E2E tests to utilize new MLflow repository stubs and PluginStore mocks for improved testing accuracy.

values.yaml

@@ -188,6 +188,32 @@ env:
   - name: MLFLOW_PASSWORD
     value: "1L0FP50j3ncp123"
 
+  # Worker runtime (PluginStore): required for PredictionsBatch / MinimalRetrain workers.
+  - name: RUNTIME
+    value: "single"
+
+  # Plugin store (model-library-store Git + runtime packages).
+  - name: STORE_BASE_URL
+    value: "http://gitea.sientia.svc.cluster.local:3000"
+  - name: STORE_OWNER
+    value: "sientia"
+  - name: STORE_REPO
+    value: "model-library-store"
+  - name: STORE_BRANCH
+    value: "main"
+  - name: STORE_USERNAME
+    valueFrom:
+      secretKeyRef:
+        name: store-credentials
+        key: username
+  - name: STORE_PASSWORD
+    valueFrom:
+      secretKeyRef:
+        name: store-credentials
+        key: password
+  - name: STORE_CACHE_TTL_SECONDS
+    value: ""
+
   - name: OPC_ID
     value: "1"
   - name: OPC_SERVER_NAME