Bump vimeo/psalm from 4.7.2 to 4.7.3 in /tools (#239)

* Bump vimeo/psalm from 4.7.2 to 4.7.3 in /tools

Bumps [vimeo/psalm](https://github.com/vimeo/psalm) from 4.7.2 to 4.7.3.
- [Release notes](https://github.com/vimeo/psalm/releases)
- [Commits](vimeo/psalm@4.7.2...4.7.3)

Signed-off-by: dependabot[bot] <support@github.com>

* Fixed PHPMatcherConstraint\matches signature according to parent class (#241)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Alessio <alessio.pierobon@gmail.com>

Author: dependabot[bot]

src/PHPUnit/PHPMatcherConstraint.php

@@ -52,9 +52,9 @@ protected function failureDescription($other) : string
                 . "\nBacktrace:\n" . $this->matcher->backtrace();
     }
 
-    protected function matches($value) : bool
+    protected function matches($other) : bool
     {
-        return $this->matcher->match($this->lastValue = $value, $this->pattern);
+        return $this->matcher->match($this->lastValue = $other, $this->pattern);
     }
 
     /**