chore(deps): bump slim/slim from 4.15.2 to 4.15.3 in /tests/apps/php

Bumps [slim/slim](https://github.com/slimphp/Slim) from 4.15.2 to 4.15.3.
- [Release notes](https://github.com/slimphp/Slim/releases)
- [Changelog](https://github.com/slimphp/Slim/blob/4.x/CHANGELOG.md)
- [Commits](https://github.com/slimphp/Slim/compare/4.15.2...4.15.3)

---
updated-dependencies:
- dependency-name: slim/slim
  dependency-version: 4.15.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

tests/apps/php/composer.lock

@@ -111,16 +111,16 @@
         },
         {
             "name": "nikic/fast-route",
-            "version": "v1.3.0",
+            "version": "1.3.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nikic/FastRoute.git",
-                "reference": "181d480e08d9476e61381e04a71b34dc0432e812"
+                "reference": "7476684f39bb9124b3be69ed3d84b66723920298"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nikic/FastRoute/zipball/181d480e08d9476e61381e04a71b34dc0432e812",
-                "reference": "181d480e08d9476e61381e04a71b34dc0432e812",
+                "url": "https://api.github.com/repos/nikic/FastRoute/zipball/7476684f39bb9124b3be69ed3d84b66723920298",
+                "reference": "7476684f39bb9124b3be69ed3d84b66723920298",
                 "shasum": ""
             },
             "require": {
@@ -155,9 +155,9 @@
             ],
             "support": {
                 "issues": "https://github.com/nikic/FastRoute/issues",
-                "source": "https://github.com/nikic/FastRoute/tree/master"
+                "source": "https://github.com/nikic/FastRoute/tree/1.3.1"
             },
-            "time": "2018-02-13T20:26:39+00:00"
+            "time": "2026-07-09T19:38:47+00:00"
         },
         {
             "name": "psr/container",
@@ -485,16 +485,16 @@
         },
         {
             "name": "slim/slim",
-            "version": "4.15.2",
+            "version": "4.15.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/slimphp/Slim.git",
-                "reference": "e12cb05ca2a14e8f459d019e87a31dc915b80470"
+                "reference": "3675bf6baac66b07032575b7bef4200b60b7974b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/slimphp/Slim/zipball/e12cb05ca2a14e8f459d019e87a31dc915b80470",
-                "reference": "e12cb05ca2a14e8f459d019e87a31dc915b80470",
+                "url": "https://api.github.com/repos/slimphp/Slim/zipball/3675bf6baac66b07032575b7bef4200b60b7974b",
+                "reference": "3675bf6baac66b07032575b7bef4200b60b7974b",
                 "shasum": ""
             },
             "require": {
@@ -597,7 +597,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2026-05-22T08:00:12+00:00"
+            "time": "2026-09-01T17:11:05+00:00"
         }
     ],
     "packages-dev": [