github-actions: listen for all the workflows (#4227)

The Otel exporter for GitHub actions can listen for all the workflows executions by using `*`

.github/workflows/opentelemetry.yml

@@ -1,15 +1,16 @@
 ---
+# Look up results at https://ela.st/oblt-ci-cd-stats
+# There will be one service per GitHub repository, including the org name, and one Transaction per Workflow.
 name: OpenTelemetry Export Trace
 
 on:
   workflow_run:
-    workflows:
-      - bump-golang
-      - golangci-lint
-      - Elastic Agent workflow using Snyk
-      - macos
+    workflows: [ "*" ]
     types: [completed]
 
+permissions:
+  contents: read
+
 jobs:
   otel-export-trace:
     runs-on: ubuntu-latest