Fix formatting to follow existing blank line patterns in workflow files

Co-authored-by: trask <[email protected]>

Author: Copilot

.github/workflows/geneva_metrics.yml

@@ -8,13 +8,11 @@ on:
       - ".github/workflows/geneva_metrics.yml"
   pull_request:
     branches: [main]
-    paths:
-      - "exporters/geneva/**"
+    paths:
+      - "exporters/geneva/**"
       - ".github/workflows/geneva_metrics.yml"
-
 permissions:
   contents: read
-
 jobs:
   cmake_linux:
     name: CMake on Linux

.github/workflows/nginx.yml

@@ -14,10 +14,8 @@ on:
     paths:
       - 'instrumentation/nginx/**'
       - '.github/workflows/nginx.yml'
-
 permissions:
   contents: read
-
 jobs:
   create-release:
     if: startsWith(github.ref, 'refs/tags/nginx')