Update contrib.yml

Author: emdneto

.github/workflows/contrib.yml

@@ -5,11 +5,10 @@ on:
     branches-ignore:
     - 'release/*'
   pull_request:
-env:
-  FOO: "bar"
+
 jobs:
   contrib_0:
-    uses: emdneto/opentelemetry-python-contrib/.github/workflows/core_contrib_test_0.yml@fix-uv
+    uses: open-telemetry/opentelemetry-python-contrib/.github/workflows/core_contrib_test_0.yml@main
     with:
       CORE_REPO_SHA: ${{ github.sha }}
-      CONTRIB_REPO_SHA: main
+      CONTRIB_REPO_SHA: emdneto/opentelemetry-python-contrib@fix-uv