Use psalm instead of psalm-matrix

Signed-off-by: Louis Chemineau <louis@chmn.me>

.github/workflows/psalm.yml

@@ -20,13 +20,8 @@ concurrency:
 jobs:
   static-analysis:
     runs-on: ubuntu-latest
-    strategy:
-      # do not stop on another job's failure
-      fail-fast: false
-      matrix:
-        ocp-version: [ 'dev-master', 'dev-stable27', 'dev-stable26', 'dev-stable25']
 
-    name: Nextcloud ${{ matrix.ocp-version }}
+    name: Nextcloud
     steps:
       - name: Checkout
         uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
@@ -34,7 +29,7 @@ jobs:
       - name: Set up php
         uses: shivammathur/setup-php@c5fc0d8281aba02c7fda07d3a70cc5371548067d # v2
         with:
-          php-version: 8.0
+          php-version: 8.1
           coverage: none
           ini-file: development
         env:
@@ -43,20 +38,5 @@ jobs:
       - name: Install dependencies
         run: composer i
 
-      - name: Install dependencies
-        run: composer require --dev nextcloud/ocp:${{ matrix.ocp-version }} --ignore-platform-reqs --with-dependencies
-
       - name: Run coding standards check
         run: composer run psalm
-
-  summary:
-    runs-on: ubuntu-latest
-    needs: static-analysis
-
-    if: always()
-
-    name: static-psalm-analysis-summary
-
-    steps:
-      - name: Summary status
-        run: if ${{ needs.static-analysis.result != 'success' }}; then exit 1; fi