chore: Fix update-psalm-baseline to use correct php version depending…

… on branch

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

.github/workflows/update-psalm-baseline.yml

@@ -14,7 +14,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        php-versions: []
         branches: ["master", "stable29", "stable28", "stable27"]
+        include:
+          - php-versions: '8.0'
+            branches: ["stable29", "stable28", "stable27"]
+          - php-versions: '8.1'
+            branches: ["master"]
 
     name: update-psalm-baseline-${{ matrix.branches }}
 
@@ -27,7 +33,7 @@ jobs:
       - name: Set up php
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.1'
+          php-version: ${{ matrix.php-versions }}
           extensions: apcu,ctype,curl,dom,fileinfo,ftp,gd,intl,json,ldap,mbstring,openssl,pdo_sqlite,posix,sqlite,xml,zip
           coverage: none
         env: