add concurrency to IntegrationTest

Author: oameye

.github/workflows/Downstream.yml

@@ -1,10 +1,19 @@
 name: IntegrationTest
 on:
   push:
-    branches: [main]
-    tags: [v*]
+    tags:
+      - '*'
+    branches:
+      - 'main'
   pull_request:
-
+    branches:
+      - 'main'
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: only if it is a pull request build.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+  
 jobs:
   test:
     name: ${{ matrix.package.repo }}/${{ matrix.julia-version }}

test/HarmonicVariable.jl

@@ -75,5 +75,5 @@ end
 
     # Test variable substitution
     new_hv = substitute_all(hv, Dict(ω => new_var))
-    @test isequal(new_hv.ω,new_var)
+    @test isequal(new_hv.ω, new_var)
 end