Correct workflows to use 8.3

Author: TomHAnderson

.github/workflows/coding-standards.yml

@@ -13,4 +13,4 @@ jobs:
     name: "Coding Standards"
     uses: "doctrine/.github/.github/workflows/[email protected]"
     with:
-      php-version: '8.2'
+      php-version: '8.3'

.github/workflows/static-analysis.yml

@@ -13,4 +13,4 @@ jobs:
     name: "Static Analysis"
     uses: "doctrine/.github/.github/workflows/[email protected]"
     with:
-      php-version: '8.2'
+      php-version: '8.3'