qa: add composer lock file

Signed-off-by: Matthew Weier O'Phinney <[email protected]>

Author: weierophinney

.gitignore

@@ -1,7 +1,6 @@
 /.phpcs-cache
 /.phpunit.result.cache
 /clover.xml
-/composer.lock
 /coveralls-upload.json
 /phpunit.xml
 /vendor/