chore: limits tests to 7.4 and latest

Author: JasonTheAdams

.github/workflows/unit-tests.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-version: ['7.4', '8.0', '8.1', '8.2', '8.3']
+        php-version: ['7.4', '8.3']
 
     steps:
     - uses: actions/checkout@v4
@@ -36,4 +36,4 @@ jobs:
       run: composer install --prefer-dist --no-progress
 
     - name: Run unit tests
-      run: composer test:unit
+      run: composer test:unit