test: fix weighted edges example (#1745)

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## Description
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Please provide a clear, human-generated description of the changes in
this PR.
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process and reasoning.
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Changed the key used for openai, since we changed the keys in the
secrets.

## Type of Change
<!-- Please check the relevant option -->
- [ ] Bug fix (non-breaking change that fixes an issue)
- [ ] New feature (non-breaking change that adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
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.github/workflows/weighted_edges_tests.yml

@@ -2,7 +2,7 @@ name: Weighted Edges Tests
 
 on:
   push:
-    branches: [ main, weighted_edges ]
+    branches: [ main, dev, weighted_edges ]
     paths:
       - 'cognee/modules/graph/utils/get_graph_from_model.py'
       - 'cognee/infrastructure/engine/models/Edge.py'
@@ -10,7 +10,7 @@ on:
       - 'examples/python/weighted_edges_example.py'
       - '.github/workflows/weighted_edges_tests.yml'
   pull_request:
-    branches: [ main ]
+    branches: [ main, dev ]
     paths:
       - 'cognee/modules/graph/utils/get_graph_from_model.py'
       - 'cognee/infrastructure/engine/models/Edge.py'
@@ -32,7 +32,7 @@ jobs:
     env:
       LLM_PROVIDER: openai
       LLM_MODEL: gpt-5-mini
-      LLM_API_KEY: ${{ secrets.LLM_API_KEY }}
+      LLM_API_KEY: ${{ secrets.OPENAI_API_KEY }}
 
     steps:
       - name: Check out repository
@@ -67,14 +67,13 @@ jobs:
     env:
       LLM_PROVIDER: openai
       LLM_MODEL: gpt-5-mini
-      LLM_ENDPOINT: https://api.openai.com/v1/
-      LLM_API_KEY: ${{ secrets.LLM_API_KEY }}
+      LLM_ENDPOINT: https://api.openai.com/v1
+      LLM_API_KEY: ${{ secrets.OPENAI_API_KEY  }}
       LLM_API_VERSION: "2024-02-01"
-      EMBEDDING_PROVIDER: openai
-      EMBEDDING_MODEL: text-embedding-3-small
-      EMBEDDING_ENDPOINT: https://api.openai.com/v1/
-      EMBEDDING_API_KEY: ${{ secrets.LLM_API_KEY }}
-      EMBEDDING_API_VERSION: "2024-02-01"
+      EMBEDDING_MODEL: ${{ secrets.EMBEDDING_MODEL }}
+      EMBEDDING_ENDPOINT: ${{ secrets.EMBEDDING_ENDPOINT }}
+      EMBEDDING_API_KEY: ${{ secrets.EMBEDDING_API_KEY }}
+      EMBEDDING_API_VERSION: ${{ secrets.EMBEDDING_API_VERSION }}
     steps:
       - name: Check out repository
         uses: actions/checkout@v4
@@ -108,14 +107,14 @@ jobs:
     env:
       LLM_PROVIDER: openai
       LLM_MODEL: gpt-5-mini
-      LLM_ENDPOINT: https://api.openai.com/v1/
-      LLM_API_KEY: ${{ secrets.LLM_API_KEY }}
+      LLM_ENDPOINT: https://api.openai.com/v1
+      LLM_API_KEY: ${{ secrets.OPENAI_API_KEY  }}
       LLM_API_VERSION: "2024-02-01"
-      EMBEDDING_PROVIDER: openai
-      EMBEDDING_MODEL: text-embedding-3-small
-      EMBEDDING_ENDPOINT: https://api.openai.com/v1/
-      EMBEDDING_API_KEY: ${{ secrets.LLM_API_KEY }}
-      EMBEDDING_API_VERSION: "2024-02-01"
+      EMBEDDING_MODEL: ${{ secrets.EMBEDDING_MODEL }}
+      EMBEDDING_ENDPOINT: ${{ secrets.EMBEDDING_ENDPOINT }}
+      EMBEDDING_API_KEY: ${{ secrets.EMBEDDING_API_KEY }}
+      EMBEDDING_API_VERSION: ${{ secrets.EMBEDDING_API_VERSION }}
+
     steps:
       - name: Check out repository
         uses: actions/checkout@v4