ci: Make each package build in a separate task using a generated matrix

.gitea/workflows/build.yml

@@ -7,19 +7,30 @@ env:
   NUGET_URL: https://git.claremontmakerspace.org/api/packages/${{ github.repository_owner }}/nuget/index.json
 
 jobs:
-  Build-Chocolatey-Packages:
+  List-Packages:
     runs-on: ubuntu-latest
     container: catthehacker/ubuntu:act-latest
+    outputs:
+      matrix: ${{ steps.set-matrix.outputs.matrix }}
+    steps:
+      - uses: actions/checkout@v3
+      - id: set-matrix
+        run: echo "matrix=$(find . -name '*.nuspec' -printf '%h\n' | sed 's|^./||g' | jq -Rsc 'split("\n")[:-1]')" >> $GITHUB_OUTPUT
+
+  Build-Chocolatey-Packages:
+    needs: List-Packages
+    runs-on: ubuntu-latest
+    container: catthehacker/ubuntu:act-latest
+    strategy:
+        matrix:
+            package: ${{ fromJson(needs.List-Packages.outputs.matrix) }}
 
     steps:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Chocolatey Pack
+        run: docker run --rm -v "$PWD/${{ matrix.package }}:/build" -w /build chocolatey/choco choco pack
+      - name: Chocolatey Push
         run: |
-          for package in */
-          do
-            echo "Packing $package"
-            docker run --rm -v "$PWD/$package:/build" -w /build chocolatey/choco choco pack
-            docker run --rm -v "$PWD/$package:/build" -w /build chocolatey/choco choco push \
+          docker run --rm -v "$PWD/${{ matrix.package }}:/build" -w /build chocolatey/choco choco push \
           --source "${{ env.NUGET_URL }}" --key "${{ secrets.GITHUB_TOKEN }}"
-          done