Add PHP 8.1 to shims and build (#1365)

* Add PHP 8.1 to shims and build

* Lock psr/container version

* Lock psr version

* Restrict symfony component versions

* Downgrade event-dispatcher-contracts

* Update more package versions

* php-cs fixes

* style fix

* cs-fixer file fix

* Exclude resources dir from cs fixer

* Ignore cs fixer env check

* Update league/csv

.github/scripts/build.sh

@@ -23,6 +23,7 @@ declare -a remove_files=(
   .eslintrc
   .php_cs
   .php_cs.cache
+  .php-cs-fixer.php
   .phpstorm.meta.php
   .styleci.yml
   .phpunit.result.cache

.github/workflows/build.yml

@@ -2,12 +2,12 @@ name: 'Build'
 on: ['push', 'pull_request', 'workflow_dispatch', 'release']
 jobs:
   build:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     if: github.repository == 'nabeelio/phpvms'
     strategy:
       fail-fast: true
       matrix:
-        php-versions: ['7.3', '7.4', '8.0']
+        php-versions: ['7.3', '7.4', '8.0', '8.1']
     name: PHP ${{ matrix.php-versions }}
     env:
       extensions: intl, pcov, mbstring
@@ -78,7 +78,8 @@ jobs:
 
     - name: Run Tests
       run: |
-        vendor/bin/php-cs-fixer fix --config=.php_cs -v --dry-run --diff --using-cache=no
+        export PHP_CS_FIXER_IGNORE_ENV=1
+        vendor/bin/php-cs-fixer fix --config=.php-cs-fixer.php -v --dry-run --diff --using-cache=no
         vendor/bin/phpunit --debug --verbose
 
   # This runs after all of the tests, run have run. Creates a cleaned up version of the