Update psr/log requirement from ^1 to ^3

Updates the requirements on [psr/log](https://github.com/php-fig/log) to permit the latest version.
- [Release notes](https://github.com/php-fig/log/releases)
- [Commits](php-fig/log@1.0.0...3.0.2)

---
updated-dependencies:
- dependency-name: psr/log
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -10,7 +10,7 @@
         "sabre/dav"     : "~4.7.0",
         "twig/twig"     : "~3.14.0",
         "symfony/yaml"  : "~6.4.13",
-        "psr/log"       : "^1",
+        "psr/log"       : "^3",
         "ext-dom"       : "*",
         "ext-openssl"   : "*",
         "ext-pdo"       : "*",