ci: update default version to php 8.3

Author: lotyp

.github/workflows/deploy-release.yml

@@ -16,7 +16,7 @@ jobs:
       fail-fast: true
       matrix:
         os: ["ubuntu-22.04"]
-        php: ["8.2"]
+        php: ["8.3"]
     environment:
       name: production
       url: https://prod.laravel-starter-tpl.wayof.dev

.github/workflows/deploy-staging.yml

@@ -16,7 +16,7 @@ jobs:
       fail-fast: true
       matrix:
         os: ["ubuntu-22.04"]
-        php: ["8.2"]
+        php: ["8.3"]
     environment:
       name: staging
       url: https://staging.laravel-starter-tpl.wayof.dev