CI: Fix psalm by removing threading

Otherwise we get
```
Uncaught Exception: InvalidArgumentException Could not get class storage for doctrine\common\collections\selectable
Emitted in /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Provider/ClassLikeStorageProvider.php:45
Stack trace in the forked worker:
#0 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Codebase/ClassLikes.php(726): Psalm\Internal\Provider\ClassLikeStorageProvider->get()
#1 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Codebase/ClassLikes.php(716): Psalm\Internal\Codebase\ClassLikes->getParentInterfaces()
#2 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Codebase.php(763): Psalm\Internal\Codebase\ClassLikes->interfaceExtends()
#3 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Type/Comparator/ObjectComparator.php(357): Psalm\Codebase->interfaceExtends()
#4 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Type/Comparator/ObjectComparator.php(117): Psalm\Internal\Type\Comparator\ObjectComparator::isIntersectionShallowlyContainedBy()
#5 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Type/Comparator/AtomicTypeComparator.php(350): Psalm\Internal\Type\Comparator\ObjectComparator::isShallowlyContainedBy()
#6 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Type.php(891): Psalm\Internal\Type\Comparator\AtomicTypeComparator::isContainedBy()
#7 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Type.php(768): Psalm\Type::intersectAtomicTypes()
#8 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/PhpVisitor/Reflector/TypeHintResolver.php(112): Psalm\Type::intersectUnionTypes()
#9 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/PhpVisitor/Reflector/FunctionLikeNodeScanner.php(405): Psalm\Internal\PhpVisitor\Reflector\TypeHintResolver::resolve()
#10 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/PhpVisitor/ReflectorVisitor.php(207): Psalm\Internal\PhpVisitor\Reflector\FunctionLikeNodeScanner->start()
#11 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(200): Psalm\Internal\PhpVisitor\ReflectorVisitor->enterNode()
#12 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(114): PhpParser\NodeTraverser->traverseArray()
#13 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(223): PhpParser\NodeTraverser->traverseNode()
#14 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(114): PhpParser\NodeTraverser->traverseArray()
#15 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(223): PhpParser\NodeTraverser->traverseNode()
#16 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(91): PhpParser\NodeTraverser->traverseArray()
#17 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Scanner/FileScanner.php(79): PhpParser\NodeTraverser->traverse()
#18 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Codebase/Scanner.php(554): Psalm\Internal\Scanner\FileScanner->scan()
#19 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Codebase/Scanner.php(782): Psalm\Internal\Codebase\Scanner->scanFile()
#20 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Fork/Pool.php(191): Psalm\Internal\Codebase\Scanner->scanAPath()
#21 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Codebase/Scanner.php(332): Psalm\Internal\Fork\Pool->__construct()
#22 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Codebase/Scanner.php(280): Psalm\Internal\Codebase\Scanner->scanFilePaths()
#23 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Codebase.php(505): Psalm\Internal\Codebase\Scanner->scanFiles()
#24 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Analyzer/ProjectAnalyzer.php(510): Psalm\Codebase->scanFiles()
#25 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Cli/Psalm.php(374): Psalm\Internal\Analyzer\ProjectAnalyzer->check()
#26 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/psalm(9): Psalm\Internal\Cli\Psalm::run()
#27 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/bin/psalm(119): include('...')
#28 {main} in /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Fork/Pool.php:379
Stack trace:
#0 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Fork/Pool.php(413): Psalm\Internal\Fork\Pool->readResultsFromChildren()
#1 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Codebase/Scanner.php(384): Psalm\Internal\Fork\Pool->wait()
#2 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Codebase/Scanner.php(280): Psalm\Internal\Codebase\Scanner->scanFilePaths()
#3 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Codebase.php(505): Psalm\Internal\Codebase\Scanner->scanFiles()
#4 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Analyzer/ProjectAnalyzer.php(510): Psalm\Codebase->scanFiles()
#5 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/src/Psalm/Internal/Cli/Psalm.php(374): Psalm\Internal\Analyzer\ProjectAnalyzer->check()
#6 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/vimeo/psalm/psalm(9): Psalm\Internal\Cli\Psalm::run()
#7 /home/runner/work/DoctrineBundle/DoctrineBundle/vendor/bin/psalm(119): include('...')
#8 {main}
(Psalm 5.22.1@e9dad66e11274315dac27e08349c628c7d6a1a43 crashed due to an uncaught Throwable)
```

.github/workflows/static-analysis.yml

@@ -31,4 +31,4 @@ jobs:
         uses: "ramsey/composer-install@v2"
 
       - name: "Run a static analysis with vimeo/psalm"
-        run: "vendor/bin/psalm --show-info=false --stats --output-format=github --threads=$(nproc) --find-unused-psalm-suppress"
+        run: "vendor/bin/psalm --show-info=false --stats --output-format=github --find-unused-psalm-suppress"