deptrac fails if user hase no write permission on the binary

[leonboot]

If deptrac is being executed by a user who has no write permissions on the actual deptrac binary, the following exception is being thrown:

Fatal error: Uncaught Humbug\SelfUpdate\Exception\FilesystemException: The current phar file is not writeable and cannot be replaced: /usr/local/bin/deptrac. in phar:///usr/local/bin/deptrac/vendor/padraic/phar-updater/src/Updater.php:438
Stack trace:
#0 phar:///usr/local/bin/deptrac/vendor/padraic/phar-updater/src/Updater.php(101): Humbug\SelfUpdate\Updater->setLocalPharFile('/usr/local/bin/...')
#1 [internal function]: Humbug\SelfUpdate\Updater->__construct(NULL, false)
#2 phar:///usr/local/bin/deptrac/vendor/symfony/dependency-injection/ContainerBuilder.php(1159): ReflectionClass->newInstanceArgs(Array)
#3 phar:///usr/local/bin/deptrac/vendor/symfony/dependency-injection/ContainerBuilder.php(1266): Symfony\Component\DependencyInjection\ContainerBuilder->createService(Object(Symfony\Component\DependencyInjection\Definition), Array)
#4 phar:///usr/local/bin/deptrac/vendor/symfony/dependency-injection/ContainerBuilder.php(1221): Symfony\Component\DependencyInjection\ContainerBuilder->doResolveServices(Object(Symfony\Compo in phar:///usr/local/bin/deptrac/vendor/padraic/phar-updater/src/Updater.php on line 438

Does the self-update mechanism perhaps trigger on every execution? This wasn't an issue before. Our last CI build from one week ago (June 21) ran fine, new builds fail because of this error. In our case, deptrac is being ran within a prepared Docker container, where /usr/local/bin/deptrac is root-owned and the UID running the tool is the UID of our Jenkins user.