ci: run patched MSYS pacman source test

Author: frangarcj

.github/workflows/build.yml

@@ -2,6 +2,8 @@ name: Build
 
 on:
   push:
+    branches-ignore:
+      - ci/msys-pacman-source
   pull_request:
   repository_dispatch:
     types: [run_build]

.github/workflows/msys-pacman-source.yml

@@ -11,6 +11,7 @@ on:
   push:
     branches:
       - next
+      - ci/msys-pacman-source
     paths:
       - cmake/Components.cmake
       - patches/pacman/**