chore(git): remove composer.lock from version control

- Remove composer.lock from git tracking
- Add composer.lock to .gitignore

This prevents potential conflicts in dependency versions across different
environments while maintaining project stability through composer.json

Author: walmir-silva

.gitattributes

@@ -14,4 +14,5 @@
 /phpstan.neon   export-ignore
 /phpunit.xml    export-ignore
 /psalm.xml      export-ignore
-/Makefile       export-ignore
+/Makefile       export-ignore
+/composer.lock