php.packages.composer: 2.7.3 -> 2.7.6

diff: https://github.com/composer/composer/compare/2.7.3..2.7.6

pkgs/development/php-packages/composer/default.nix

···
   # use together with the version from this package to keep the
   # bootstrap phar file up-to-date together with the end user composer
   # package.
-  passthru.pharHash = "sha256-/MAv8ES1oE++z/AVjLYEHCXo94rElAmHNv7NK7TzgeQ=";
+  passthru.pharHash = "sha256-KdyaGe8zU12wYbMRgLKoM6fPjSz0FFszovg1BId7ugg=";
 
   composer = callPackage ../../../build-support/php/pkgs/composer-phar.nix {
     inherit (finalAttrs) version;
···
   };
 
   pname = "composer";
-  version = "2.7.3";
+  version = "2.7.6";
 
   src = fetchFromGitHub {
     owner = "composer";
     repo = "composer";
     rev = finalAttrs.version;
-    hash = "sha256-4cQ/p6lC8qgba/GSKuP2rFc0mZrUc+HuwvBMXnVERoU=";
+    hash = "sha256-LZwg3PR3zl07Nb6MS8oKkRfjLgqtT/c4sfUOzWE4S+U=";
   };
 
   nativeBuildInputs = [ makeBinaryWrapper ];