Fix conda recipe parsing and pin workflow to Ubuntu 22.04 LTS

- Fixed meta.yaml script field to use single line format
- Removed Windows skip condition to allow cross-platform builds
- Pinned GitHub Actions workflow to ubuntu-22.04 for stability
- Should resolve 'Number of parsed outputs does not match detected raw metadata blocks' warning

Author: quantDIY

.github/workflows/matrix-build.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   matrix-conda-build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
@@ -61,7 +61,7 @@ jobs:
 
   publish-release-candidate:
     needs: matrix-conda-build
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     if: success()
 
     steps:

matrix-build/conda-recipe/meta.yaml

@@ -10,11 +10,8 @@ source:
 
 build:
   number: 0
-  skip: true  # [py<310 or win]
-  script: |
-    python matrix-build/setup-matrix.py install
-    npm install
-    npm run build
+  skip: true  # [py<310]
+  script: "python matrix-build/setup-matrix.py install && npm install && npm run build"
 
 requirements:
   build: