chore: bump php dependencies

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

[skip ci]

Author: vitormattos

composer.json

@@ -58,12 +58,6 @@
 			"OCA\\Libresign\\Tests\\Fixtures\\": "tests/php/fixtures/"
 		}
 	},
-	"repositories": [
-		{
-			"type": "vcs",
-			"url": "https://github.com/vitormattos/pdf-signer-php"
-		}
-	],
 	"require": {
 		"cweagans/composer-patches": "^2.0",
 		"jeidison/signer-php": "dev-feat/visible-signature-appearance-php81",