Try alternative syntax

Author: milancurcic

.github/workflows/ci.yml

@@ -1,10 +1,18 @@
 name: ci
 
-on: [push, pull_request]
-  paths:
-    - ".github/workflows/ci.yml"
-    - "fpm.toml"
-    - "**.f90"
+on:
+
+  push:
+    paths:
+      - ".github/workflows/ci.yml"
+      - "fpm.toml"
+      - "**.f90"
+
+  pull_request:
+    paths:
+      - ".github/workflows/ci.yml"
+      - "fpm.toml"
+      - "**.f90"
 
 env:
   FPM_FFLAGS: -I/usr/include/hdf5/serial