Add PHP 8.2 to "must pass", and "nightly" to "allow fail"

.github/workflows/main.yml

@@ -11,9 +11,10 @@ jobs:
           - '7.4'
           - '8.0'
           - '8.1'
+          - '8.2'
 
         include:
-          - php-version: '8.2'
+          - php-version: 'nightly'
             experimental: true
 
     name: PHP ${{ matrix.php-version }}
@@ -42,7 +43,7 @@ jobs:
 
       - name: Delete composer lock file
         id: composer-lock
-        if: ${{ matrix.php-version == '8.1' || matrix.php-version == '8.2' }}
+        if: ${{ matrix.php-version == '8.1' || matrix.php-version == '8.2' || matrix.php-version == 'nightly' }}
         run: |
           rm composer.lock
           echo "::set-output name=flags::--ignore-platform-reqs"